15-letter words starting with S

15-letter words starting with S number 537, with SCHIZOAFFECTIVE leading the score list at 40 points.

537 wordsTop pick STRAIGHTFORWARDHighest score SCHIZOAFFECTIVE 40

2 of 537 are everyday words (0%). Mostly rare words: great for Scrabble, tough for daily puzzles.

Letter
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

P starts the most 15-letter words (695); Y starts the fewest (2). S ranks #3 of 26. The bar under each letter shows the size of its list.

Length
2
3
4
5
6
7
8
9
10
11
12
13
14
15

Best words to play first 537 · most-used first

STRAIGHTFORWARD₂₆
SYNCHRONIZATION₃₂
STANDARDIZATION₂₆
SUPPLEMENTATION₂₁
SUPERINTENDENTS₁₈
SUPERCONDUCTING₂₃
SURREPTITIOUSLY₂₀
SPECIALIZATIONS₂₈
SYMPATHETICALLY₃₀
STANDARDISATION₁₇
SUPERCONDUCTORS₂₂
SLAUGHTERHOUSES₂₂
STEREOTYPICALLY₂₅
SYNCHRONISATION₂₃
SOCIOLINGUISTIC₂₀
SIMPLIFICATIONS₂₄
SENSATIONALIZED₂₅
SCHISTOSOMIASIS₂₂
SPERMATOGENESIS₂₀
STEREOCHEMISTRY₂₅
SADOMASOCHISTIC₂₅
SCHIZOAFFECTIVE₄₀
SYNERGISTICALLY₂₄
SUPERINTENDENCE₂₀
SUPERSTRUCTURES₁₉
SEGREGATIONISTS₁₇
SUBURBANIZATION₂₈
SERENDIPITOUSLY₂₁
SYSTEMATIZATION₂₉
SPECIALISATIONS₁₉
SUPERIMPOSITION₂₁
SUPERCONDUCTIVE₂₅
SUPERINTENDENCY₂₃
SUCCINYLCHOLINE₂₇
SUPERSATURATION₁₇
SENSATIONALISED₁₆
SYMPATHOMIMETIC₃₁
SEMITRANSPARENT₁₉
SUBSTITUTIONARY₂₀
SYMPTOMATICALLY₂₉
SUPERNATURALISM₁₉
SUPERHETERODYNE₂₄
SYNCHRONICITIES₂₅
STRATIGRAPHICAL₂₃
SUPERSTITIOUSLY₂₀
SECURITIZATIONS₂₆
SENTIMENTALIZED₂₇
SANCTIMONIOUSLY₂₂

Showing the top 48 of 537 words. See every valid word

All valid words 537

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

SABERMETRICALLY₂₄
SABERMETRICIANS₂₁
SACCHARIMETRIES₂₄
SACCHARISATIONS₂₂
SACCHARIZATIONS₃₁
SACCHAROMYCESES₂₉
SACCHAROMYCETES₂₉
SACERDOTALISING₁₉
SACERDOTALIZING₂₈
SACRAMENTALISMS₂₁
SACRAMENTALISTS₁₉
SACRAMENTALIZED₂₉
SACRAMENTALIZES₂₈
SACRAMENTALNESS₁₉
SACRAMENTARIANS₁₉
SACROSANCTITIES₁₉
SADOMASOCHISTIC₂₅
SAGACIOUSNESSES₁₈
SALACIOUSNESSES₁₇
SALPINGECTOMIES₂₂
SANCTIFICATIONS₂₂
SANCTIMONIOUSLY₂₂
SANGUIFICATIONS₂₁
SANGUINEOUSNESS₁₆
SANGUINOLENCIES₁₈
SANSCULOTTERIES₁₇
SAPONACEOUSNESS₁₉
SAPONIFICATIONS₂₂
SAPROGENICITIES₂₀
SAPROPHYTICALLY₃₀
SARCENCHYMATOUS₂₇
SARRACENIACEOUS₁₉
SATANICALNESSES₁₇
SATIRICALNESSES₁₇
SCANDALISATIONS₁₈
SCANDALIZATIONS₂₇
SCAPHOCEPHALIES₂₉
SCAPHOCEPHALISM₃₁
SCAPHOCEPHALOUS₂₉
SCAREMONGERINGS₂₁
SCATHEFULNESSES₂₃
SCENTLESSNESSES₁₇
SCHEMATISATIONS₂₂
SCHEMATIZATIONS₃₁
SCHILLERISATION₂₀
SCHILLERIZATION₂₉
SCHISTOSOMIASES₂₂
SCHISTOSOMIASIS₂₂
SCHIZOAFFECTIVE₄₀
SCHIZOPHRENETIC₃₆
SCHLOCKMEISTERS₂₈
SCHOLARLINESSES₂₀
SCHOOLMASTERING₂₃
SCHOOLMASTERISH₂₅
SCHOOLMISTRESSY₂₅
SCHOOLTEACHINGS₂₆
SCINTILLASCOPES₂₁
SCINTILLATINGLY₂₁
SCINTILLOMETERS₁₉
SCINTILLOSCOPES₂₁
SCLERODERMATOUS₂₀
SCLEROTHERAPIES₂₂
SCLEROTISATIONS₁₇
SCLEROTIZATIONS₂₆
SCOLOPENDRIFORM₂₅
SCORCHINGNESSES₂₃
SCRATCHBUILDERS₂₅
SCRATCHBUILDING₂₆
SCRIBACIOUSNESS₂₁
SCRIMSHANDERING₂₄
SCRUMPTIOUSNESS₂₁
SCULPTURESQUELY₃₁
SEAKINDLINESSES₂₀
SEARCHABILITIES₂₂
SEARCHINGNESSES₂₁
SEAWORTHINESSES₂₁
SECLUSIVENESSES₂₀
SECONDARINESSES₁₈
SECRETIVENESSES₂₀
SECTIONISATIONS₁₇
SECTIONIZATIONS₂₆
SECULARISATIONS₁₇
SECULARIZATIONS₂₆
SECUNDOGENITURE₁₉
SECURITISATIONS₁₇
SECURITIZATIONS₂₆
SEDENTARINESSES₁₆
SEDIMENTOLOGIES₁₉
SEDIMENTOLOGIST₁₉
SEDITIOUSNESSES₁₆
SEDUCTIVENESSES₂₁
SEGREGATIONISTS₁₇
SEISMOGRAPHICAL₂₅
SEISMOLOGICALLY₂₃
SELECTIVENESSES₂₀
SELENOGRAPHICAL₂₃
SELENOGRAPHISTS₂₁
SEMIABSTRACTION₂₁
SEMICENTENNIALS₁₉
SEMICOLONIALISM₂₁
SEMICONDUCTIONS₂₂
SEMICONSCIOUSLY₂₄
SEMICRYSTALLINE₂₂
SEMICYLINDRICAL₂₅
SEMIDOCUMENTARY₂₅
SEMILOGARITHMIC₂₅
SEMIMANUFACTURE₂₄
SEMIPARASITISMS₂₁
SEMIPORNOGRAPHY₂₈
SEMIRETIREMENTS₁₉
SEMISUBMERSIBLE₂₃
SEMITERRESTRIAL₁₇
SEMITRANSLUCENT₁₉
SEMITRANSPARENT₁₉
SENSATIONALISED₁₆
SENSATIONALISES₁₅
SENSATIONALISMS₁₇
SENSATIONALISTS₁₅
SENSATIONALIZED₂₅
SENSATIONALIZES₂₄
SENSELESSNESSES₁₅
SENSITIVENESSES₁₈
SENSUALISATIONS₁₅
SENSUALIZATIONS₂₄
SENTENTIOUSNESS₁₅
SENTIMENTALISED₁₈
SENTIMENTALISES₁₇
SENTIMENTALISMS₁₉
SENTIMENTALISTS₁₇
SENTIMENTALIZED₂₇
SENTIMENTALIZES₂₆
SEPARABLENESSES₁₉
SEPTENDECILLION₂₀
SEPTENTRIONALLY₂₀
SEPTUAGENARIANS₁₈
SEQUENTIALITIES₂₄
SERENDIPITOUSLY₂₁
SERICICULTURIST₁₉
SERICITISATIONS₁₇
SERICITIZATIONS₂₆
SEROCONVERSIONS₂₀
SEROPREVALENCES₂₂
SERVICEABLENESS₂₂
SERVOMECHANICAL₂₇
SERVOMECHANISMS₂₇
SESQUICARBONATE₂₈
SESQUICENTENARY₂₉
SESQUISULPHIDES₃₀
SHAMANISTICALLY₂₅
SHAMEFASTNESSES₂₃
SHAMELESSNESSES₂₀
SHAPELESSNESSES₂₀
SHERARDISATIONS₁₉
SHERARDIZATIONS₂₈
SHIFTLESSNESSES₂₁
SHILLINGSWORTHS₂₅
SHILLYSHALLIERS₂₄
SHILLYSHALLYING₂₈
SHOCKUMENTARIES₂₆
SHOWERPROOFINGS₂₇
SIDESPLITTINGLY₂₂
SIGHTLESSNESSES₁₉
SIGMOIDECTOMIES₂₃
SIGMOIDOSCOPIES₂₃
SIGNIFICATIVELY₂₇
SILICIFICATIONS₂₂
SILVERSMITHINGS₂₄
SILVICULTURALLY₂₃
SILVICULTURISTS₂₀
SIMPLICIDENTATE₂₂
SIMPLIFICATIONS₂₄
SINGULARISATION₁₆
SINGULARIZATION₂₅
SINISTRODEXTRAL₂₃
SINTERABILITIES₁₇
SKEPTICALNESSES₂₃
SKETCHABILITIES₂₆
SLAUGHTERHOUSES₂₂
SLEDGEHAMMERING₂₅
SLEEPLESSNESSES₁₇
SLUMPFLATIONARY₂₅
SMOKELESSNESSES₂₁
SNIPPERSNAPPERS₂₃
SOCIALISTICALLY₂₂
SOCIOBIOLOGICAL₂₂
SOCIOBIOLOGISTS₂₀
SOCIOCULTURALLY₂₂
SOCIOHISTORICAL₂₂
SOCIOLINGUISTIC₂₀
SOFTHEARTEDNESS₂₂
SOLDERABILITIES₁₈
SOLDIERLINESSES₁₆
SOLEMNIFICATION₂₂
SOLIDIFICATIONS₂₁
SOLIPSISTICALLY₂₂
SOLITUDINARIANS₁₆
SOLUBILISATIONS₁₇
SOLUBILIZATIONS₂₆
SOMATOLOGICALLY₂₃
SOMNAMBULATIONS₂₁
SONOGRAPHICALLY₂₆
SOOTHFASTNESSES₂₁
SOPHISTICATEDLY₂₆
SOPHISTICATIONS₂₂
SORROWFULNESSES₂₁
SOUNDLESSNESSES₁₆
SOUTHEASTERLIES₁₈
SOUTHEASTERNERS₁₈
SOUTHERLINESSES₁₈
SOUTHWESTERLIES₂₁
SOUTHWESTERNERS₂₁
SOUTHWESTWARDLY₂₈
SPECIALISATIONS₁₉
SPECIALIZATIONS₂₈
SPECTROGRAPHIES₂₅
SPECTROSCOPICAL₂₅
SPECTROSCOPISTS₂₃
SPECULATIVENESS₂₂
SPEECHFULNESSES₂₅
SPEECHIFICATION₂₇
SPELEOTHERAPIES₂₂
SPERMATOBLASTIC₂₃
SPERMATOGENESES₂₀
SPERMATOGENESIS₂₀
SPERMATOGENETIC₂₂
SPERMATOGONICAL₂₂
SPERMATORRHOEAS₂₂
SPHAEROCRYSTALS₂₅
SPHAEROSIDERITE₂₁
SPHERICALNESSES₂₂
SPHEROIDICITIES₂₃
SPHEROIDISATION₂₁
SPHEROIDIZATION₃₀
SPHYGMOGRAPHIES₃₂
SPINELESSNESSES₁₇
SPINTHARISCOPES₂₄
SPIRITOUSNESSES₁₇
SPIRITUALNESSES₁₇
SPIROCHAETAEMIA₂₄
SPIRONOLACTONES₁₉
SPLANCHNOLOGIES₂₃
SPLENDIFEROUSLY₂₄
SPLENECTOMISING₂₂
SPLENECTOMIZING₃₁
SPONTANEOUSNESS₁₇
SPORANGIOPHORES₂₃
SPORANGIOSPORES₂₀
SPREADABILITIES₂₀
SPRIGHTLINESSES₂₁
SQUEAMISHNESSES₂₉
SQUEEZABILITIES₃₅
STADHOLDERSHIPS₂₅
STADTHOLDERATES₂₀
STADTHOLDERSHIP₂₅
STAGEWORTHINESS₂₂
STAINLESSNESSES₁₅
STALACTITICALLY₂₂
STALAGMITICALLY₂₃
STALAGMOMETRIES₂₀
STANDARDISATION₁₇
STANDARDIZATION₂₆
STANDOFFISHNESS₂₅
STAPHYLOPLASTIC₂₇
STAPHYLORRHAPHY₃₄
STATELESSNESSES₁₅
STEADFASTNESSES₁₉
STEEPLECHASINGS₂₃
STEGANOGRAPHERS₂₂
STEGANOGRAPHIES₂₂
STEGANOGRAPHIST₂₂
STEGOCEPHALIANS₂₃
STEREOCHEMISTRY₂₅
STEREOGRAPHICAL₂₃
STEREOISOMERISM₁₉
STEREOISOMETRIC₁₉
STEREOLOGICALLY₂₁
STEREOTAXICALLY₂₇
STEREOTYPICALLY₂₅
STEROIDOGENESES₁₇
STEROIDOGENESIS₁₇
STIGMATISATIONS₁₈
STIGMATIZATIONS₂₇
STIGMATOPHILIAS₂₃
STIGMATOPHILIST₂₃
STILPNOSIDERITE₁₈
STOCKBROKERAGES₂₈
STOECHIOLOGICAL₂₃
STOECHIOMETRIES₂₂
STOICHEIOLOGIES₂₁
STOICHEIOMETRIC₂₄
STOICHIOLOGICAL₂₃
STOICHIOMETRIES₂₂
STOMATOPLASTIES₁₉
STONELESSNESSES₁₅
STRABISMOMETERS₂₁
STRAIGHTFORWARD₂₆
STRAIGHTJACKETS₃₂
STRAITJACKETING₂₉
STRAITLACEDNESS₁₈
STRAITWAISTCOAT₂₀
STRATICULATIONS₁₇
STRATIFICATIONS₂₀
STRATIGRAPHICAL₂₃
STRATIGRAPHISTS₂₁
STRATOSPHERICAL₂₂
STRATOVOLCANOES₂₀
STRENUOUSNESSES₁₅
STREPHOSYMBOLIA₂₇
STREPTOBACILLUS₂₁
STREPTOCARPUSES₂₁
STREPTOTHRICINS₂₂
STRESSFULNESSES₁₈
STRIKEBREAKINGS₂₆
STRINGENTNESSES₁₆
STROBILISATIONS₁₇
STROBILIZATIONS₂₆
STROMBULIFEROUS₂₂
STRONGYLOIDOSES₂₀
STRONGYLOIDOSIS₂₀
STRUCTURALISING₁₈
STRUCTURALIZING₂₇
STULTIFICATIONS₂₀
STYLELESSNESSES₁₈
SUBAGGREGATIONS₂₀
SUBALTERNATIONS₁₇
SUBASSOCIATIONS₁₉
SUBCATEGORISING₂₁
SUBCATEGORIZING₃₀
SUBCIVILISATION₂₂
SUBCIVILIZATION₃₁
SUBCOMMISSIONED₂₄
SUBCOMMISSIONER₂₃
SUBCONTRACTINGS₂₂
SUBCONTRAOCTAVE₂₄
SUBDEVELOPMENTS₂₅
SUBINFEUDATIONS₂₁
SUBINSINUATIONS₁₇
SUBINTELLECTION₁₉
SUBINTELLIGENCE₂₀
SUBINTELLIGITUR₁₈
SUBLAPSARIANISM₂₁
SUBMETACENTRICS₂₃
SUBMINIATURISED₂₀
SUBMINIATURISES₁₉
SUBMINIATURIZED₂₉
SUBMINIATURIZES₂₈
SUBOPTIMISATION₂₁
SUBOPTIMIZATION₃₀
SUBORDINATENESS₁₈
SUBORGANISATION₁₈
SUBORGANIZATION₂₇
SUBPROFESSIONAL₂₂
SUBPROLETARIATS₁₉
SUBREPTITIOUSLY₂₂
SUBSPECIALISING₂₂
SUBSPECIALITIES₂₁
SUBSPECIALIZING₃₁
SUBSPECIFICALLY₂₉
SUBSTANTIALISED₁₈
SUBSTANTIALISES₁₇
SUBSTANTIALISMS₁₉
SUBSTANTIALISTS₁₇
SUBSTANTIALIZED₂₇
SUBSTANTIALIZES₂₆
SUBSTANTIALNESS₁₇
SUBSTANTIATIONS₁₇
SUBSTANTIVENESS₂₀
SUBSTANTIVISING₂₁
SUBSTANTIVITIES₂₀
SUBSTANTIVIZING₃₀
SUBSTITUTIONARY₂₀
SUBSTRATOSPHERE₂₂
SUBTERRANEOUSLY₂₀
SUBTERRESTRIALS₁₇
SUBURBANISATION₁₉
SUBURBANIZATION₂₈
SUBVERSIONARIES₂₀
SUBVOCALISATION₂₂
SUBVOCALIZATION₃₁
SUCCESSLESSNESS₁₉
SUCCINYLCHOLINE₂₇
SUFFICINGNESSES₂₄
SUGGESTIBLENESS₁₉
SUGGESTIONISING₁₈
SUGGESTIONIZING₂₇
SULFAMETHAZINES₃₂
SULFINPYRAZONES₃₂
SULFUROUSNESSES₁₈
SULPHACETAMIDES₂₅
SULPHANILAMIDES₂₃
SULPHATHIAZOLES₃₂
SULPHINPYRAZONE₃₄
SULPHONMETHANES₂₅
SULPHUREOUSNESS₂₀
SULPHURISATIONS₂₀
SULPHURIZATIONS₂₉
SUMMERFALLOWING₂₆
SUMPTUOUSNESSES₁₉
SUPERABLENESSES₁₉
SUPERABSORBENTS₂₁
SUPERABUNDANCES₂₂
SUPERABUNDANTLY₂₃
SUPERACTIVITIES₂₂
SUPERADDITIONAL₁₉
SUPERANNUATIONS₁₇
SUPERBUREAUCRAT₂₁
SUPERCALENDERED₂₁
SUPERCARGOSHIPS₂₅
SUPERCOMPUTINGS₂₄
SUPERCONDUCTING₂₃
SUPERCONDUCTION₂₂
SUPERCONDUCTIVE₂₅
SUPERCONDUCTORS₂₂
SUPERCONFIDENCE₂₅
SUPERCONTINENTS₁₉
SUPERCONVENIENT₂₂
SUPEREFFICIENCY₃₀
SUPERELEVATIONS₂₀
SUPERENCIPHERED₂₅
SUPEREROGATIONS₁₈
SUPEREXALTATION₂₄
SUPEREXCELLENCE₂₈
SUPERFICIALISED₂₃
SUPERFICIALISES₂₂
SUPERFICIALIZED₃₂
SUPERFICIALIZES₃₁
SUPERFICIALNESS₂₂
SUPERFINENESSES₂₀
SUPERFLUIDITIES₂₁
SUPERFLUOUSNESS₂₀
SUPERFOETATIONS₂₀
SUPERGOVERNMENT₂₃
SUPERHETERODYNE₂₄
SUPERHUMANISING₂₃
SUPERHUMANITIES₂₂
SUPERHUMANIZING₃₂
SUPERIMPOSITION₂₁
SUPERINCUMBENCE₂₅
SUPERINCUMBENCY₂₈
SUPERINDIVIDUAL₂₂
SUPERINDUCEMENT₂₂
SUPERINDUCTIONS₂₀
SUPERINFECTIONS₂₂
SUPERINTENDENCE₂₀
SUPERINTENDENCY₂₃
SUPERINTENDENTS₁₈
SUPERLATIVENESS₂₀
SUPERMAJORITIES₂₆
SUPERNATIONALLY₂₀
SUPERNATURALISE₁₇
SUPERNATURALISM₁₉
SUPERNATURALIST₁₇
SUPERNATURALIZE₂₆
SUPERNUMERARIES₁₉
SUPERNUTRITIONS₁₇
SUPERORDINATING₁₉
SUPERORDINATION₁₈
SUPERORGANICISM₂₂
SUPERORGANICIST₂₀
SUPEROVULATIONS₂₀
SUPERPARASITISM₂₁
SUPERPATRIOTISM₂₁
SUPERPHENOMENON₂₄
SUPERPHOSPHATES₂₇
SUPERPLASTICITY₂₄
SUPERSATURATING₁₈
SUPERSATURATION₁₇
SUPERSCRIPTIONS₂₁
SUPERSPECIALIST₂₁
SUPERSPECTACLES₂₃
SUPERSPREADINGS₂₁
SUPERSTIMULATED₂₀
SUPERSTIMULATES₁₉
SUPERSTITIOUSLY₂₀
SUPERSTRUCTIONS₁₉
SUPERSTRUCTURAL₁₉
SUPERSTRUCTURES₁₉
SUPERSUBTLETIES₁₉
SUPERSYMMETRIES₂₄
SUPERVISORSHIPS₂₅
SUPPLEMENTARIES₂₁
SUPPLEMENTARILY₂₄
SUPPLEMENTATION₂₁
SUPPORTABLENESS₂₁
SUPPOSITIONALLY₂₂
SUPPOSITIONLESS₁₉
SUPPRESSIBILITY₂₄
SUPPRESSIVENESS₂₂
SUPRALAPSARIANS₁₉
SUPRANATIONALLY₂₀
SURREPTITIOUSLY₂₀
SURVIVABILITIES₂₃
SUSCEPTIBLENESS₂₁
SUSPECTEDNESSES₂₀
SUSPENSEFULNESS₂₀
SUSPERCOLLATING₂₀
SWELLHEADEDNESS₂₃
SYCOPHANTICALLY₃₀
SYLLABIFICATION₂₅
SYLLABOGRAPHIES₂₆
SYLLOGISTICALLY₂₄
SYMBOLISTICALLY₂₇
SYMBOLOGRAPHIES₂₈
SYMMETRICALNESS₂₄
SYMMETRISATIONS₂₂
SYMMETRIZATIONS₃₁
SYMMETROPHOBIAS₂₉
SYMPATHECTOMIES₂₉
SYMPATHETICALLY₃₀
SYMPATHOMIMETIC₃₁
SYMPHYSEOTOMIES₃₀
SYMPHYSIOTOMIES₃₀
SYMPTOMATICALLY₂₉
SYMPTOMATOLOGIC₂₇
SYMPTOMOLOGICAL₂₇
SYNAPOSEMATISMS₂₄
SYNARTHRODIALLY₂₅
SYNCHRONICITIES₂₅
SYNCHRONISATION₂₃
SYNCHRONISTICAL₂₅
SYNCHRONIZATION₃₂
SYNCHRONOLOGIES₂₄
SYNCHRONOSCOPES₂₇
SYNCHRONOUSNESS₂₃
SYNCRETISATIONS₂₀
SYNCRETIZATIONS₂₉
SYNECDOCHICALLY₃₁
SYNECOLOGICALLY₂₆
SYNERGISTICALLY₂₄
SYNTAGMATICALLY₂₆
SYNTHESISATIONS₂₁
SYNTHESIZATIONS₃₀
SYNTHETISATIONS₂₁
SYNTHETIZATIONS₃₀
SYSTEMATISATION₂₀
SYSTEMATIZATION₂₉
SYSTEMATOLOGIES₂₁

Letters by positionIn 59% of these words the 15th letter is S.

2nd letter

U32%
E14%
T13%

4th letter

E23%
I10%
R8%

12th letter

I27%
T14%
S13%

13th letter

I28%
S19%
O14%

14th letter

E31%
N20%
L9%

15th letter

S59%
Y11%
N7%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses

Score spreadMost of these words score 22 in Scrabble; SCHIZOAFFECTIVE tops the list with 40. Scores before board bonuses.

1515 points: 9 words
16 points: 9 words
1717 points: 39 words
18 points: 27 words
1919 points: 48 words
20 points: 57 words
2121 points: 57 words
22 points: 65 words
2323 points: 42 words
24 points: 31 words
2525 points: 37 words
26 points: 24 words
2727 points: 22 words
28 points: 15 words
2929 points: 17 words
30 points: 13 words
3131 points: 12 words
32 points: 8 words
3333 points: 0 words
34 points: 2 words
3535 points: 1 words
36 points: 1 words
3737 points: 0 words
38 points: 0 words
3939 points: 0 words
40 points: 1 words

Word	Scrabble	Words With Friends	Dictionaries
SCHIZOAFFECTIVE	40	42	NWL only
SCHIZOPHRENETIC	36	38	Collins only
SQUEEZABILITIES	35	38	All three
STAPHYLORRHAPHY	34	32	Collins only
SULPHINPYRAZONE	34	38	Collins only
SYNCHRONIZATION	32	34	All three
STRAIGHTJACKETS	32	35	All three
SULFINPYRAZONES	32	36	All three
SPHYGMOGRAPHIES	32	34	Collins only
SULFAMETHAZINES	32	35	Collins only
SULPHATHIAZOLES	32	34	Collins only
SUPERFICIALIZED	32	36	Collins only

S supplies a substantial opening-letter group at this unusual length, but the large count hides a sharp split between familiar vocabulary and tournament coverage. Only 2 entries rank among the top 25,000 English words, while 517 appear in Collins and 303 in NWL2023. For this group, recognizing a spelling is less reliable than checking your game’s dictionary.

What stands out among these long S words?

The 537 entries include 378 with definitions.
SCHIZOAFFECTIVE scores 40, the highest score.
A total of 317 entries end in S, well ahead of the 59 ending in Y.
Only 2 entries are common by the top-25,000 frequency measure.

Which 15-letter words starting with S score highest?

SCHIZOAFFECTIVE leads at 40 points, followed by SCHIZOPHRENETIC at 36 and SQUEEZABILITIES at 35. STAPHYLORRHAPHY and SULPHINPYRAZONE each score 34, so the top end rewards rare, high-value letters more than everyday familiarity.

SYNCHRONIZATION scores 32 and is easier to recognize than several names above it. Straightforward is another familiar-looking example, but it does not appear among the ten highest scores. Compare the word’s letter value with its length; a long entry is not automatically a top scorer.

When are 15-letter words starting with S worth playing?

S has 537 entries at this length, fewer than P’s 695 and C’s 601, but more than I’s 505. The final letter also narrows the field: S-ending entries account for 317, while Y is a distant second at 59. Those endings give you a practical filter when a rack or clue fixes the last letter.

The common-word count is just 2 out of 537, or about 0.37%, so most choices are specialist vocabulary rather than words you would reach for in conversation. Collins includes 517 entries, compared with 303 in NWL2023 and 254 in ENABLE; don’t assume every game accepts the same choices. Check your game’s word list before committing an unfamiliar spelling.

Questions people ask

How many 15-letter words start with S?

There are 537 tournament-dictionary entries that start with S and have 15 letters. The group includes 378 entries with definitions, but only 2 rank among the top 25,000 English words, so many are specialist vocabulary.

What is the highest-scoring 15-letter S word?

SCHIZOAFFECTIVE is the highest-scoring entry, at 40 points. SCHIZOPHRENETIC follows at 36, and SQUEEZABILITIES scores 35, making the leader four points ahead of the runner-up.

Do most 15-letter S words end in S?

Yes. A total of 317 of these words end in S, compared with 59 ending in Y and 35 ending in N. The S ending is the clear majority among the recorded final-letter groups.

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