4-letter words ending in O
4-letter words ending in O number 216, including familiar picks like ALSO, HERO, ZERO, and TACO.
48 of 216 are everyday words (22%). A mix of familiar words and game-only finds.
S ends the most 4-letter words (1,110); Q ends the fewest (1). O ranks #10 of 26. The bar under each letter shows the size of its list.
Common words
- ALSO4
- INTO4
- ONTO4
- HERO7
- ZERO13
- SOLO4
- INFO7
- AUTO4
- LOGO5
- EURO4
- DEMO7
- ECHO9
- UNTO4
- TRIO4
- MEMO8
- POLO6
- HALO7
- MAYO9
- TACO6
- OTTO4
- VETO7
- EXPO13
- HOMO9
- UNDO5
- MILO6
- MONO6
- RENO4
- COCO8
- AMMO8
- ALTO4
- NANO4
- AFRO7
- VIVO10
- DECO7
- DINO5
- SOHO7
- AERO4
- LIMO6
- MOJO13
- TYPO9
- BOKO10
- JUDO12
- TORO4
- LOCO6
- REDO5
- CAMO8
- KILO8
- REPO6
All valid words 216
- ACRO6
- AERO4
- AFRO7
- AGIO5
- AGRO5
- ALCO6
- ALKO8
- ALSO4
- ALTO4
- AMBO8
- AMMO8
- ANNO4
- APSO6
- ARCO6
- ARVO7
- AUTO4
- BEGO7
- BIRO6
- BITO6
- BOBO8
- BOHO9
- BOKO10
- BOLO6
- BOYO9
- BOZO15
- BRIO6
- BROO6
- BUBO8
- BUDO7
- BUFO9
- CALO6
- CAMO8
- CAPO8
- CERO6
- CHAO9
- CIAO6
- CITO6
- COCO8
- COHO9
- DADO6
- DAGO6
- DATO5
- DECO7
- DELO5
- DEMO7
- DERO5
- DIDO6
- DINO5
- DOCO7
- DODO6
- DOJO12
- DURO5
- DZHO17
- ECCO8
- ECHO9
- EDDO6
- ERGO5
- EURO4
- EXPO13
- FADO8
- FANO7
- FARO7
- FICO9
- FIDO8
- FIGO8
- FILO7
- FINO7
- GAJO12
- GAPO7
- GIRO5
- GOBO7
- GOGO6
- GYNO8
- GYPO10
- GYRO8
- HALO7
- HARO7
- HELO7
- HERO7
- HOBO9
- HOLO7
- HOMO9
- HUSO7
- HYPO12
- INFO7
- INGO5
- INRO4
- INTO4
- JATO11
- JIAO11
- JOCO13
- JOMO13
- JUCO13
- JUDO12
- KAGO9
- KARO8
- KAYO11
- KENO8
- KERO8
- KETO8
- KILO8
- KINO8
- KOBO10
- KOLO8
- KORO8
- KOTO8
- KUDO9
- KYBO13
- LAZO13
- LENO4
- LEVO7
- LIDO5
- LILO4
- LIMO6
- LINO4
- LIPO6
- LOBO6
- LOCO6
- LOGO5
- LOTO4
- LUDO5
- MAKO10
- MANO6
- MAYO9
- MEMO8
- MENO6
- MICO8
- MILO6
- MINO6
- MIRO6
- MISO6
- MOFO9
- MOHO9
- MOJO13
- MOKO10
- MONO6
- MOZO15
- MUSO6
- MYXO16
- NANO4
- NOLO4
- ODSO5
- OLEO4
- OLIO4
- ONTO4
- OPPO8
- ORDO5
- ORZO13
- OTTO4
- OUZO13
- PACO8
- PEPO8
- PESO6
- PHEO9
- PISO6
- POCO8
- POGO7
- POLO6
- POMO8
- PRAO6
- PROO6
- PYRO9
- RATO4
- REDO5
- REGO5
- RENO4
- REPO6
- RIVO7
- ROTO4
- SADO5
- SAGO5
- SECO6
- SEGO5
- SHMO9
- SHOO7
- SIJO11
- SILO4
- SKEO8
- SKIO8
- SOHO7
- SOLO4
- SUMO6
- SYBO9
- TACO6
- TARO4
- THIO7
- THRO7
- TIRO4
- TOCO6
- TOHO7
- TOKO8
- TOMO6
- TOPO6
- TORO4
- TOYO7
- TRIO4
- TYPO9
- TYRO7
- UMBO8
- UNCO6
- UNDO5
- UNTO4
- UPDO7
- UPGO7
- URAO4
- VEGO8
- VETO7
- VINO7
- VIVO10
- WERO7
- WHIO10
- WINO7
- YEBO9
- YUKO11
- ZERO13
- ZOBO15
Highest-scoring words
| Word | Scrabble | Words With Friends | Dictionaries |
|---|---|---|---|
| DZHO | 17 | 16 | Collins only |
| MYXO | 16 | 16 | Collins only |
| BOZO | 15 | 16 | All three |
| MOZO | 15 | 16 | All three |
| ZOBO | 15 | 16 | Collins only |
| ZERO | 13 | 13 | All three |
| EXPO | 13 | 14 | All three |
| MOJO | 13 | 16 | All three |
| JOMO | 13 | 16 | Collins only |
| LAZO | 13 | 14 | Collins only |
| JUCO | 13 | 17 | Collins · NWL |
| OUZO | 13 | 14 | All three |
The ending is fixed, but the first three letters give you plenty of ways to narrow the search. Familiar options include INTO, ONTO, SOLO, and LOGO; less everyday entries include DZHO and MYXO. Of the 216 words, 48 meet Word Puzzle Answers’s common-word frequency cutoff, so a short list of recognizable choices sits inside a much larger tournament-dictionary set.
What stands out among four-letter O endings
- The combined tournament-dictionary list contains 216 four-letter words ending in O.
- ALSO, INTO, ONTO, HERO, and ZERO are familiar starting points.
- M is the most frequent first letter, with 18 matching words.
- There are 48 common entries among the 216 matches.
- DZHO leads the listed high scorers at 17 points.
How many 4-letter words end in O?
There are 216 four-letter words ending in O across the combined dictionary set. The most common starting letter is M, with 18 entries; A follows with 16, while T has 15.
B, D, K, and S each start 14 of these words. That spread means you should not assume the list is dominated by one opening letter: M leads, but only by four words over B, D, K, or S.
For everyday play, try ALSO, INTO, ONTO, HERO, ZERO, SOLO, INFO, or AUTO first. The list also includes compact choices such as TRIO, MEMO, POLO, and VETO.
Which O-ending words appear across dictionaries?
Dictionary coverage changes the size of your usable set: Collins includes 206 matches, NWL2023 includes 158, and ENABLE includes 131. Those source counts overlap, so they should not be added together.
A word appearing in one tournament list is not guaranteed in another. Familiar examples such as EURO, DEMO, ECHO, and UNTO are easier to recognize than the full tournament vocabulary, but always check the word list used by your game when a play depends on acceptance.
The common group is the safer starting point here: 48 entries, including ALSO, AUTO, HALO, and TACO, are everyday words. The rest are tournament vocabulary, which is why a familiar option usually beats a rarer, higher-scoring one.
How should you choose 4-letter words ending in O?
For score hunting, DZHO is the standout at 17 points, followed by MYXO at 16. BOZO, MOZO, and ZOBO each score 15, while ZERO, EXPO, and MOJO are listed at 13.
Those high values come from unusual letters, not from how familiar a word looks. The counterintuitive move is to keep the rare entries in mind for a scoring chance, but not to rely on them before confirming your game’s dictionary. A known word such as ZERO scores 13 in the listed values and is easier to spot on a rack.
The average score across the 216 entries is 7.3. When you need a quick fit rather than a high-value play, use the recognizable choices first; when a premium square opens, check the Z- and X-heavy scorers.
Questions people ask
How many four-letter words end in O?
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Which common four-letter words end in O?
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