4 Letter Words Ending In O
There are 140 four-letter words ending in O in the official Scrabble US & Canada word list. Start with the common words below, or jump into the full list grouped by first letter.
Common 4 letter words ending in O
Everyday English words, most frequent first.
- 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
- COCO8
- AMMO8
- ALTO4
- DECO7
Highest scoring 4 letter words ending in O
- BOZO15
- MOZO15
- EXPO13
- JUCO13
- MOJO13
- ORZO13
- OUZO13
- ZERO13
- DOJO12
- HYPO12
- JUDO12
- JATO11
Quick facts
- 140 valid Scrabble words; 49 of them are everyday English words (35%).
- Most common pattern: __RO with 17 words (for example HERO, ZERO, EURO).
- 93 words have no repeated letters (66%) — useful when you want to test as many letters as possible.
- 0 end in S (often plurals or verb forms).
- 8 contain only one vowel.
- 131 are also valid in Words With Friends (ENABLE list).
All 140 4 letter words ending in O
A…O (9)
- AERO4
- AGIO5
- ALSO4
- ALTO4
- AMBO8
- AMMO8
- ARCO6
- ARVO7
- AUTO4
B…O (8)
- BIRO6
- BOHO9
- BOLO6
- BOYO9
- BOZO15
- BRIO6
- BROO6
- BUBO8
C…O (8)
- CALO6
- CAMO8
- CAPO8
- CERO6
- CHAO9
- CIAO6
- COCO8
- COHO9
D…O (10)
- DADO6
- DAGO6
- DATO5
- DECO7
- DEMO7
- DIDO6
- DINO5
- DODO6
- DOJO12
- DURO5
E…O (5)
- ECHO9
- EDDO6
- ERGO5
- EURO4
- EXPO13
F…O (7)
- FADO8
- FANO7
- FARO7
- FICO9
- FIDO8
- FILO7
- FINO7
G…O (4)
- GIRO5
- GOBO7
- GOGO6
- GYRO8
H…O (6)
- HALO7
- HELO7
- HERO7
- HOBO9
- HOMO9
- HYPO12
I…O (3)
- INFO7
- INRO4
- INTO4
J…O (4)
- JATO11
- JIAO11
- JUCO13
- JUDO12
K…O (9)
- KAYO11
- KENO8
- KETO8
- KILO8
- KINO8
- KOBO10
- KOLO8
- KOTO8
- KUDO9
L…O (9)
- LENO4
- LEVO7
- LIDO5
- LILO4
- LIMO6
- LINO4
- LOBO6
- LOCO6
- LOGO5
M…O (10)
- MAKO10
- MANO6
- MAYO9
- MEMO8
- MENO6
- MILO6
- MISO6
- MOJO13
- MONO6
- MOZO15
N…O (1)
- NOLO4
O…O (7)
- OLEO4
- OLIO4
- ONTO4
- ORDO5
- ORZO13
- OTTO4
- OUZO13
P…O (8)
- PEPO8
- PESO6
- PISO6
- POCO8
- POLO6
- POMO8
- PRAO6
- PYRO9
R…O (4)
- RATO4
- REDO5
- REPO6
- ROTO4
S…O (8)
- SAGO5
- SEGO5
- SHMO9
- SHOO7
- SILO4
- SOLO4
- SUMO6
- SYBO9
T…O (11)
- TACO6
- TARO4
- THIO7
- THRO7
- TIRO4
- TOPO6
- TORO4
- TOYO7
- TRIO4
- TYPO9
- TYRO7
U…O (5)
- UMBO8
- UNCO6
- UNDO5
- UNTO4
- UPDO7
V…O (2)
- VETO7
- VINO7
W…O (1)
- WINO7
Z…O (1)
- ZERO13
Tips for using these words
In Scrabble, BOZO is the highest base score here (15 points). Put the high-value tile on a double or triple letter square to multiply it.
Ending letters are good hooks on the board: a word ending in O can often be extended or crossed by playing through the final O. The most common second-to-last letter here is R.
Scores are base tile values in Scrabble US & Canada. Use the word finder to see which words your own rack can make.
Frequently asked questions
How many 4 letter words end in O?
There are 140 four-letter words ending in O in the official Scrabble US & Canada word list (TWL06). 49 of them are common everyday words.
What are common 4 letter words ending in O?
Common examples include ALSO, INTO, ONTO, HERO, ZERO, SOLO, INFO, AUTO, LOGO, EURO.
What is the highest scoring 4 letter word ending in O?
BOZO scores 15 points before board multipliers. Other high scorers are MOZO, EXPO, JUCO, MOJO.
How many of these words have no repeated letters?
93 of the 140 words use 4 different letters.
Are these words valid in Scrabble and Words With Friends?
All 140 are valid in Scrabble US & Canada (TWL06). 131 are also in the ENABLE list used by Words With Friends.