13-letter words ending in L

There are 561 13-letter words ending in L, from familiar choices like international to high-scoring specialist terms.

561 wordsTop pick INTERNATIONALHighest score ZYGAPOPHYSEAL 36

31 of 561 are everyday words (6%). Mostly rare words: great for Scrabble, tough for daily puzzles.

S ends the most 13-letter words (7,018); K ends the fewest (7). L ranks #7 of 26. The bar under each letter shows the size of its list.

Common words 31 · most-used first

  • INTERNATIONAL13
  • ENVIRONMENTAL18
  • PSYCHOLOGICAL26
  • CONTROVERSIAL18
  • CONGRESSIONAL16
  • TECHNOLOGICAL21
  • INSTITUTIONAL13
  • ARCHITECTURAL20
  • PHILOSOPHICAL25
  • DEVELOPMENTAL21
  • INSPIRATIONAL15
  • DISRESPECTFUL21
  • COMPUTATIONAL19
  • MULTINATIONAL15
  • PHYSIOLOGICAL24
  • INSTRUCTIONAL15
  • GRAVITATIONAL17
  • UNCONDITIONAL16
  • CHRONOLOGICAL21
  • MULTICULTURAL17
  • INTERPERSONAL15
  • DYSFUNCTIONAL22
  • MITOCHONDRIAL21
  • GUBERNATORIAL16
  • INFORMATIONAL18
  • TRANSNATIONAL13
  • STEREOTYPICAL20
  • MORPHOLOGICAL23
  • HORTICULTURAL18
  • OBSERVATIONAL18
  • UNINTENTIONAL13
All valid words 561

A to Z. Includes rare and Collins-only words. Linked tiles open the word's meaning, score and rhymes.

  • ABSTRACTIONAL17
  • ACIDIMETRICAL20
  • ACQUISITIONAL24
  • AERODYNAMICAL21
  • AGGRADATIONAL16
  • AGGREGATIONAL16
  • ALCHEMISTICAL22
  • AMBASSADORIAL18
  • AMPHISTOMATAL22
  • AMPHITHEATRAL23
  • ANATHEMATICAL20
  • ANEMOMETRICAL19
  • ANOMALISTICAL17
  • ANTIBACTERIAL17
  • ANTICLASSICAL17
  • ANTIDIARRHEAL17
  • ANTIMICROBIAL19
  • ANTIPERSONNEL15
  • ANTIPOLITICAL17
  • APHRODISIACAL21
  • APOCALYPTICAL24
  • APPELLATIONAL17
  • ARAEOMETRICAL17
  • ARBITRATIONAL15
  • ARCHEOLOGICAL21
  • ARCHIDIACONAL21
  • ARCHITECTURAL20
  • ASSOCIATIONAL15
  • ASTACOLOGICAL18
  • ASTROMETRICAL17
  • ASTRONAUTICAL15
  • ASTROPHYSICAL23
  • ATMOSPHERICAL22
  • ATTRIBUTIONAL15
  • AUTECOLOGICAL18
  • AUTOGRAPHICAL21
  • BACTERIOCIDAL20
  • BALNEOLOGICAL18
  • BATHYMETRICAL25
  • BENEDICTIONAL18
  • BENEFICENTIAL20
  • BIBLIOLOGICAL20
  • BIBLIOPOLICAL21
  • BICONDITIONAL18
  • BIDIRECTIONAL18
  • BIOBEHAVIORAL23
  • BIOECOLOGICAL20
  • BIOELECTRICAL19
  • BIOMECHANICAL24
  • BIOPESTICIDAL20
  • BISYMMETRICAL24
  • CABBALISTICAL21
  • CACOGRAPHICAL25
  • CALCULATIONAL17
  • CARDINALATIAL16
  • CARDINALITIAL16
  • CARDIOLOGICAL19
  • CATECHISTICAL22
  • CEREBROSPINAL19
  • CEROGRAPHICAL23
  • CHARLATANICAL20
  • CHEMOSURGICAL23
  • CHIROMANTICAL22
  • CHLOROPLASTAL20
  • CHONDRIOSOMAL21
  • CHOREPISCOPAL24
  • CHRONOLOGICAL21
  • CLIMACTERICAL21
  • CLINODIAGONAL17
  • CLINOMETRICAL19
  • CODICOLOGICAL21
  • COEDUCATIONAL18
  • COHOMOLOGICAL23
  • COLLOCATIONAL17
  • COLPOSCOPICAL23
  • COMBINATIONAL19
  • COMBINATORIAL19
  • COMPARTMENTAL21
  • COMPOSITIONAL19
  • COMPOSITORIAL19
  • COMPRESSIONAL19
  • COMPROVINCIAL24
  • COMPUTATIONAL19
  • CONCHOLOGICAL23
  • CONGRESSIONAL16
  • CONJUGATIONAL23
  • CONJUNCTIONAL24
  • CONNOTATIONAL15
  • CONSEQUENTIAL24
  • CONTRACTIONAL17
  • CONTRALATERAL15
  • CONTROVERSIAL18
  • CONVOCATIONAL20
  • CONVOLUTIONAL18
  • COREFERENTIAL18
  • CORESIDENTIAL16
  • COROLLIFLORAL18
  • CORRELATIONAL15
  • COSMECEUTICAL21
  • COSMOCHEMICAL26
  • COSMOTHETICAL22
  • CRANIOLOGICAL18
  • CRINICULTURAL17
  • CRYPTOLOGICAL23
  • CRYSTALLOIDAL19
  • CYBERCRIMINAL24
  • CYTOGENETICAL21
  • DECLINATIONAL16
  • DEFORMATIONAL19
  • DEMOGRAPHICAL24
  • DEMONOLOGICAL19
  • DENDROLOGICAL18
  • DEONTOLOGICAL17
  • DESTRUCTIONAL16
  • DETERMINANTAL16
  • DEVELOPMENTAL21
  • DIALOGISTICAL17
  • DINITROPHENOL19
  • DIOTHELETICAL19
  • DIPSOMANIACAL20
  • DISCONTENTFUL19
  • DISFUNCTIONAL19
  • DISPOSITIONAL16
  • DISRESPECTFUL21
  • DISSEPIMENTAL18
  • DOLICHOCEPHAL26
  • DRAMATURGICAL19
  • DYOTHELETICAL22
  • DYOTHELITICAL22
  • DYSFUNCTIONAL22
  • DYSMENORRHEAL22
  • ECONOMETRICAL19
  • ELECTRODERMAL18
  • EMBRYOLOGICAL23
  • ENCOMIASTICAL19
  • ENTOMOLOGICAL18
  • ENVIRONMENTAL18
  • ENZYMOLOGICAL30
  • EPIPHENOMENAL22
  • EQUIPOTENTIAL24
  • ETHNOCULTURAL18
  • EUCHARISTICAL20
  • EUDIOMETRICAL18
  • EXAMINATIONAL22
  • EXCLAMATIONAL24
  • EXCRESCENTIAL24
  • EXOBIOLOGICAL25
  • EXPECTATIONAL24
  • EXPLORATIONAL22
  • EXPURGATORIAL23
  • EXTERRITORIAL20
  • EXTRAJUDICIAL30
  • EXTRAMETRICAL24
  • EXTRATROPICAL24
  • FLORICULTURAL18
  • FLUCTUATIONAL18
  • FLUVIOGLACIAL22
  • FORAMINIFERAL21
  • FUTUROLOGICAL19
  • GAMOGENETICAL19
  • GASTROLOGICAL17
  • GASTRONOMICAL18
  • GERATOLOGICAL17
  • GLACIOLOGICAL19
  • GLOSSOLOGICAL17
  • GONIOMETRICAL18
  • GRANDPARENTAL17
  • GRAPHOLOGICAL22
  • GRAVIMETRICAL21
  • GRAVITATIONAL17
  • GUBERNATORIAL16
  • GYNECOLOGICAL22
  • HAEMORRHOIDAL22
  • HELIOMETRICAL20
  • HELIOTROPICAL20
  • HELISPHERICAL23
  • HEMATOLOGICAL21
  • HEMATOTHERMAL23
  • HEMISPHERICAL25
  • HEORTOLOGICAL19
  • HEPTAMETRICAL22
  • HERESTHETICAL21
  • HERMENEUTICAL20
  • HETEROTHERMAL21
  • HETEROTYPICAL23
  • HIEROCRATICAL20
  • HISTOCHEMICAL25
  • HOMOEOTHERMAL23
  • HOMOEOTYPICAL25
  • HOMOGENETICAL21
  • HOMOIOTHERMAL23
  • HORTICULTURAL18
  • HYDROMETRICAL24
  • HYDROPATHICAL27
  • HYDROSCOPICAL26
  • HYDROSTATICAL22
  • HYGROMETRICAL24
  • HYGROSCOPICAL26
  • HYPERBOLOIDAL24
  • HYPERCRITICAL25
  • HYPERMETRICAL25
  • HYPERPHYSICAL31
  • HYPERPYREXIAL33
  • HYPERRATIONAL21
  • HYPOCYCLOIDAL29
  • HYPSOMETRICAL25
  • IATROCHEMICAL22
  • ICHTHYOFAUNAL27
  • IDEOGRAPHICAL22
  • IMAGINATIONAL16
  • IMMIGRATIONAL18
  • IMMUNOLOGICAL20
  • IMPLICATIONAL19
  • INCANTATIONAL15
  • INCARNATIONAL15
  • INCLINATIONAL15
  • INFINITESIMAL18
  • INFORMATIONAL18
  • INQUISITIONAL22
  • INQUISITORIAL22
  • INSCRIPTIONAL17
  • INSPIRATIONAL15
  • INSTITUTIONAL13
  • INSTRUCTIONAL15
  • INSUBSTANTIAL15
  • INTERACTIONAL15
  • INTERCOLONIAL15
  • INTERCOMMUNAL19
  • INTERCORTICAL17
  • INTERCULTURAL15
  • INTERFAMILIAL18
  • INTERHOSPITAL18
  • INTERJECTURAL22
  • INTERMARGINAL16
  • INTERNATIONAL13
  • INTERNEURONAL13
  • INTERPARIETAL15
  • INTERPERSONAL15
  • INTERPROXIMAL24
  • INTERREGIONAL14
  • INTERSIDEREAL14
  • INTERSOCIETAL15
  • INTERTERMINAL15
  • INTERTROPICAL17
  • INTRACEREBRAL17
  • INTRANATIONAL13
  • INTRAPARIETAL15
  • INTRAPERSONAL15
  • IRREVERENTIAL16
  • ISOGEOTHERMAL19
  • ISOPROTERENOL15
  • LABYRINTHICAL23
  • LACKADAISICAL22
  • LEGISLATORIAL14
  • LEXICOLOGICAL25
  • LEXIGRAPHICAL28
  • LOGARITHMICAL21
  • LOGOGRAPHICAL22
  • LUBRICATIONAL17
  • MACRODIAGONAL19
  • MAGISTRATICAL18
  • MALACOLOGICAL20
  • MANGOLDWURZEL29
  • MANNERISTICAL17
  • MAXILLOFACIAL27
  • MENINGOCOCCAL22
  • MENSURATIONAL15
  • METACERCARIAL19
  • METAFICTIONAL20
  • METALLURGICAL18
  • METAPOLITICAL19
  • METAPSYCHICAL27
  • MICROCHEMICAL26
  • MICROCOSMICAL23
  • MICROCULTURAL19
  • MICROFILARIAL20
  • MICROMETRICAL21
  • MICROPHYSICAL27
  • MICROSCOPICAL23
  • MICROSURGICAL20
  • MINERALOGICAL18
  • MITOCHONDRIAL21
  • MOLLUSCICIDAL20
  • MONOCHROMICAL24
  • MONOGRAPHICAL23
  • MONOPHTHONGAL24
  • MORPHOLOGICAL23
  • MULTICULTURAL17
  • MULTIHOSPITAL20
  • MULTINATIONAL15
  • MULTIREGIONAL16
  • MULTISPECTRAL19
  • MULTITERMINAL17
  • MUSICOLOGICAL20
  • MYCOBACTERIAL24
  • MYOELECTRICAL22
  • MYTHOPOETICAL25
  • NECROMANTICAL19
  • NECROSCOPICAL21
  • NEMATOLOGICAL18
  • NEOLOGISTICAL16
  • NEPHROLOGICAL21
  • NEUROCHEMICAL22
  • NEUROHORMONAL18
  • NEUROPATHICAL20
  • NEUROSURGICAL16
  • NOMENCLATURAL17
  • NOMOGRAPHICAL23
  • NONACCIDENTAL18
  • NONANALYTICAL18
  • NONANATOMICAL17
  • NONBEHAVIORAL21
  • NONBIOLOGICAL18
  • NONCOMMERCIAL21
  • NONCONCEPTUAL19
  • NONCONSENSUAL15
  • NONELECTRICAL17
  • NONFUNCTIONAL18
  • NONGONOCOCCAL20
  • NONHISTORICAL18
  • NONHOMOSEXUAL25
  • NONHYSTERICAL21
  • NONINDIVIDUAL18
  • NONINDUSTRIAL14
  • NONJUDGMENTAL24
  • NONMANAGERIAL16
  • NONMEANINGFUL19
  • NONMECHANICAL22
  • NONPURPOSEFUL20
  • NONRECIPROCAL19
  • NONSEQUENTIAL22
  • NONSTRUCTURAL15
  • NONTHEATRICAL18
  • NONVOCATIONAL18
  • NUMEROLOGICAL18
  • NUTRACEUTICAL17
  • NUTRICEUTICAL17
  • OBSERVATIONAL18
  • OBSTRUCTIONAL17
  • OCEANOLOGICAL18
  • OCHLOCRATICAL22
  • ODONTOLOGICAL17
  • OREOGRAPHICAL21
  • ORGANOLOGICAL17
  • ORIENTATIONAL13
  • ORISMOLOGICAL18
  • OROPHARYNGEAL22
  • ORTHODIAGONAL18
  • ORTHOPAEDICAL21
  • OSCILLATIONAL15
  • OSTEOMALACIAL17
  • OVEREMOTIONAL18
  • OVIPOSITIONAL18
  • PALINDROMICAL20
  • PALYNOLOGICAL21
  • PANDEMONIACAL20
  • PANTHEISTICAL20
  • PAPYROLOGICAL23
  • PARAGRAPHICAL23
  • PARALLACTICAL19
  • PARAPOPHYSIAL25
  • PARAPSYCHICAL27
  • PARASITICIDAL18
  • PARENTHETICAL20
  • PASIGRAPHICAL23
  • PENTABARBITAL19
  • PENTHEMIMERAL22
  • PENTOBARBITAL19
  • PERICHONDRIAL21
  • PERIPATETICAL19
  • PERISSODACTYL21
  • PERMACULTURAL19
  • PERMUTATIONAL17
  • PESSIMISTICAL19
  • PETROCHEMICAL24
  • PETROPHYSICAL25
  • PHARMACOPEIAL24
  • PHENOBARBITAL22
  • PHILOMATHICAL25
  • PHILOSOPHICAL25
  • PHLEBOTOMICAL24
  • PHONOMETRICAL22
  • PHOTOCHEMICAL27
  • PHRENOLOGICAL21
  • PHYLACTERICAL25
  • PHYSIOLOGICAL24
  • PHYTOCHEMICAL30
  • PISCICULTURAL19
  • PLANIMETRICAL19
  • PLUTOCRATICAL19
  • POLYRIBOSOMAL22
  • POLYTECHNICAL25
  • POSTCLASSICAL19
  • POSTEMBRYONAL22
  • POSTINAUGURAL16
  • POSTMENSTRUAL17
  • POSTULATIONAL15
  • POTAMOLOGICAL20
  • PRAEFECTORIAL20
  • PRAXEOLOGICAL25
  • PREBIOLOGICAL20
  • PREDICAMENTAL20
  • PREHISTORICAL20
  • PREINDUSTRIAL16
  • PREMENOPAUSAL19
  • PREMILLENNIAL17
  • PREPOSITIONAL17
  • PRETERNATURAL15
  • PREVOCATIONAL20
  • PROBLEMATICAL21
  • PROCREATIONAL17
  • PROCTOLOGICAL20
  • PROCURATORIAL17
  • PROGENITORIAL16
  • PROGRESSIONAL16
  • PROPAGATIONAL18
  • PROPOSITIONAL17
  • PROPRAETORIAL17
  • PROPRIETORIAL17
  • PROSECUTORIAL17
  • PROSOPOPOEIAL19
  • PROTONOTARIAL15
  • PSEPHOLOGICAL23
  • PSYCHIATRICAL25
  • PSYCHOLOGICAL26
  • PYROTECHNICAL25
  • QUADRAGESIMAL26
  • QUADRICIPITAL27
  • QUADRIGEMINAL26
  • QUADRILATERAL23
  • QUADRILINGUAL24
  • QUADRILITERAL23
  • QUINDECENNIAL25
  • QUODLIBETICAL27
  • RADIOCHEMICAL23
  • RAREFACTIONAL18
  • REFORMATIONAL18
  • RESPIRATIONAL15
  • SCHUTZSTAFFEL33
  • SEGREGATIONAL15
  • SEISMOLOGICAL18
  • SELENOLOGICAL16
  • SEMEIOLOGICAL18
  • SEMICLASSICAL19
  • SEMIEMPIRICAL21
  • SEMIMENSTRUAL17
  • SEMIOCHEMICAL24
  • SEMIPOLITICAL19
  • SENSORINEURAL13
  • SEPTENTRIONAL15
  • SILVICULTURAL18
  • SOCIOCULTURAL17
  • SOMATOLOGICAL18
  • SOMATOPLEURAL17
  • SPADICIFLORAL21
  • SPELEOLOGICAL18
  • SPERMATOCIDAL20
  • SQUIRARCHICAL29
  • STALACTITICAL17
  • STALAGMITICAL18
  • STEREOLOGICAL16
  • STEREOTYPICAL20
  • STRATEGETICAL16
  • STREPTOCOCCAL21
  • SUBDIVISIONAL19
  • SUBEQUATORIAL24
  • SUBSEQUENTIAL24
  • SUBSISTENTIAL15
  • SUBSTRUCTURAL17
  • SUBTERNATURAL15
  • SUPERCOLOSSAL17
  • SUPERCRIMINAL19
  • SUPERCRITICAL19
  • SUPERNATIONAL15
  • SUPERPERSONAL17
  • SUPERPHYSICAL25
  • SUPERPOWERFUL23
  • SUPERREGIONAL16
  • SUPPOSITIONAL17
  • SUPRANATIONAL15
  • SUPRARATIONAL15
  • SUPRATEMPORAL19
  • SYCOPHANTICAL25
  • SYLLOGISTICAL19
  • SYLVICULTURAL21
  • SYMBOLISTICAL22
  • SYMPATHETICAL25
  • SYMPTOMATICAL24
  • SYNARTHRODIAL20
  • SYNECDOCHICAL26
  • SYNECOLOGICAL21
  • TABLESPOONFUL20
  • TACHOMETRICAL22
  • TACHYMETRICAL25
  • TAUTOMETRICAL17
  • TAUTOPHONICAL20
  • TECHNOLOGICAL21
  • TEMPERAMENTAL19
  • TERATOLOGICAL16
  • TERCENTENNIAL15
  • TERMINATIONAL15
  • TERPSICHOREAL20
  • TETARTOHEDRAL17
  • THALAMIFLORAL21
  • THEOREMATICAL20
  • TOPOGRAPHICAL23
  • TORTOISESHELL16
  • TOXICOLOGICAL25
  • TRANSACTIONAL15
  • TRANSCULTURAL15
  • TRANSFUSIONAL16
  • TRANSLATIONAL13
  • TRANSLATORIAL13
  • TRANSNATIONAL13
  • TRANSPERSONAL15
  • TRANSURETHRAL16
  • TRAPEZOHEDRAL28
  • TRICENTENNIAL15
  • TRICHOLOGICAL21
  • TRICHOMONADAL21
  • TRISYLLABICAL20
  • TRITHEISTICAL18
  • TROGLODYTICAL20
  • TYPOGRAPHICAL26
  • ULTRACRITICAL17
  • ULTRANATIONAL13
  • ULTRAPHYSICAL23
  • ULTRAPOWERFUL21
  • ULTRARATIONAL13
  • UNAPOSTOLICAL17
  • UNCONDITIONAL16
  • UNDIALECTICAL18
  • UNEVANGELICAL19
  • UNEXCEPTIONAL24
  • UNGRAMMATICAL20
  • UNIDEOLOGICAL17
  • UNINFLUENTIAL16
  • UNINTENTIONAL13
  • UNMINISTERIAL15
  • UNMISTRUSTFUL18
  • UNPROPHETICAL22
  • UNREPROACHFUL23
  • UNSENSATIONAL13
  • UNSENTIMENTAL15
  • UNSUBSTANTIAL15
  • UNSYMMETRICAL22
  • UNTERRESTRIAL13
  • UNTHEOLOGICAL19
  • UNTHEORETICAL18
  • UNTRADITIONAL14
  • VENOGRAPHICAL24
  • VENTRILOQUIAL25
  • VENTROLATERAL16
  • VISCOMETRICAL22
  • VIVISECTIONAL21
  • XIPHIPLASTRAL27
  • XYLOGRAPHICAL31
  • ZOOSPORANGIAL25
  • ZYGAPOPHYSEAL36
  • ZYGAPOPHYSIAL36
  • ZYMOTECHNICAL34
Letters by positionIn 97% of these words the 12th letter is A.
7th letter
  1. A21%
  2. L15%
  3. I9%
8th letter
  1. T26%
  2. O17%
  3. E11%
9th letter
  1. I20%
  2. T16%
  3. G14%
10th letter
  1. I49%
  2. O22%
  3. R7%
11th letter
  1. C46%
  2. N22%
  3. I12%
12th letter
  1. A97%
  2. U2%
  3. E1%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 18 in Scrabble; ZYGAPOPHYSEAL tops the list with 36. Scores before board bonuses.
  1. 1313 points: 14 words
  2. 14 points: 5 words
  3. 1515 points: 49 words
  4. 16 points: 33 words
  5. 1717 points: 61 words
  6. 18 points: 64 words
  7. 1919 points: 60 words
  8. 20 points: 50 words
  9. 2121 points: 49 words
  10. 22 points: 43 words
  11. 2323 points: 34 words
  12. 24 points: 35 words
  13. 2525 points: 29 words
  14. 26 points: 10 words
  15. 2727 points: 10 words
  16. 28 points: 2 words
  17. 2929 points: 3 words
  18. 30 points: 3 words
  19. 3131 points: 2 words
  20. 32 points: 0 words
  21. 3333 points: 2 words
  22. 34 points: 1 words
  23. 3535 points: 0 words
  24. 36 points: 2 words
WordScrabbleWords With FriendsDictionaries
ZYGAPOPHYSEAL3637Collins only
ZYGAPOPHYSIAL3637Collins only
ZYMOTECHNICAL3437Collins only
SCHUTZSTAFFEL3335Collins only
HYPERPYREXIAL3333Collins only
HYPERPHYSICAL3131All three
XYLOGRAPHICAL3134All three
EXTRAJUDICIAL3035All three
PHYTOCHEMICAL3032All three
ENZYMOLOGICAL3035Collins only
HYPOCYCLOIDAL2931Collins · NWL
MANGOLDWURZEL2935Collins only

The endings are fixed, but the beginnings vary: P leads with 73 words, followed by C with 56 and S with 53. Only 31 entries rank among the top 25,000 English words by frequency, so many options are technical or uncommon. The strongest play depends on your rack and the dictionary your game uses.

What stands out at a glance

  • The list contains 561 tournament-dictionary words ending in L.
  • P is the most common starting letter, with 73 entries.
  • C and S follow, with 56 and 53 words respectively.
  • Only 31 entries rank among the top 25,000 English words by frequency.

Which 13-letter words ending in L score highest?

Zygapophyseal and zygapophysial tie for the top score at 36 points. Zymotechnical follows at 34, while hyperpyrexial and schutzstaffel each score 33. These are specialist words, not everyday plays, so confirm your game accepts them before building a turn around one.

More recognizable examples include international, environmental, psychological, and controversial. Their score is lower than the leaders, but familiar letter patterns can make them easier to spot in a rack. The average score across the list is 19.9 points; premium board squares still change the final total.

What should you check before playing one?

Dictionary coverage differs: 315 entries appear in ENABLE, 547 in Collins, and 345 in NWL2023. Those totals overlap, so they are not separate groups to add together. Check your game's word list once before relying on a rare entry such as zygapophyseal.

The ending is less common here than it is among other thirteen-letter lists: 7,018 words end in S and 1,563 end in Y, compared with 561 ending in L. For a familiar option, look first at international or environmental; for points, scan for the unusual Z and Y combinations in the top scorers. Definitions cover 403 of the 561 words.

Questions people ask

How many 13-letter words end in L?
There are 561 tournament-dictionary words with thirteen letters ending in L. The source totals differ: 315 appear in ENABLE, 547 in Collins, and 345 in NWL2023. Those dictionaries share entries, so their counts should not be added together.
Which 13-letter word ending in L has the highest Scrabble score?
Zygapophyseal and zygapophysial tie at 36 points. Both outrank zymotechnical at 34 points and hyperpyrexial at 33. These unusual terms can be hard to recognize, so verify the spelling and your game's dictionary before playing.
Are many 13-letter words ending in L common?
No. Only 31 of the 561 entries fall within the top 25,000 English words by frequency. International, environmental, and psychological are recognizable examples, while many other entries are technical or specialized vocabulary.

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