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2-letter words ending in O

17 two-letter words ending in O exist in tournament play, and TO and SO are the most familiar of them.

17 wordsTop pick TOHighest score ZO 11

16 of 17 are everyday words (94%). A friendly list: most players will know the top picks.

O ends the most 2-letter words (17); K ends the fewest (1). O ranks #1 of 26. The bar under each letter shows the size of its list.

Common words 16 · most-used first

  • TO2
  • SO2
  • DO3
  • NO2
  • GO3
  • YO5
  • MO4
  • HO5
  • LO2
  • JO9
  • BO4
  • PO4
  • KO6
  • WO5
  • OO2
  • IO2
All valid words 17

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

  • BO4
  • DO3
  • GO3
  • HO5
  • IO2
  • JO9
  • KO6
  • LO2
  • MO4
  • NO2
  • OO2
  • PO4
  • SO2
  • TO2
  • WO5
  • YO5
  • ZO11
Letters by positionIn 6% of these words the 1st letter is B.
1st letter
  1. B6%
  2. D6%
  3. G6%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
WordScrabbleWords With FriendsDictionaries
ZO1111Collins only
JO911All three
KO66Collins only
YO54All three
HO54All three
WO55All three
MO45All three
BO45All three
PO45Collins · NWL
DO33All three
GO34All three
TO22All three

O is the busiest vowel ending at two letters. It closes 17 of the 126 two-letter words, ahead of A on 15, E and I on 14 each and U on 6, and 16 of the 17 count as common English. Only 4 are missing from the North American list.

The 17 two-letter words ending in O

  • O closes 17 of the 126 two-letter words, ahead of A on 15 and U on 6.
  • Every one is a single letter in front of O, from TO and SO to OO and IO.
  • 16 of the 17 count as common English, and all 17 carry a definition.
  • ZO scores 11 and JO 9, while six other entries score just 2.
  • Collins takes all 17, NWL2023 only 13 and ENABLE 12.

Which two-letter O word scores highest?

ZO at 11 points, the best of the group by two clear points. Z is worth 10 and O adds 1, so the word is almost entirely one tile.

JO follows at 9, then KO at 6 and YO, HO and WO at 5. The bottom of the list is crowded, with six words on just 2 points and DO and GO managing 3.

Why so many of these feel familiar

16 of the 17 belong to the top 25,000 English words, an unusually high share for such a thin ending. ZO is the only outsider, and it is also the best scorer.

O endings double as ordinary words and as board fragments. TO, NO, GO, SO and DO are everyday English; JO, KO and WO are the ones you meet while playing rather than reading.

Four of them need Collins

Note

Collins lists all 17 words and NWL2023 only 13, so IO, KO, OO and ZO vanish in North American play. The 11-point ZO is the one you will miss most.

Questions people ask

How many two-letter words end in O?
17 of the 126 two-letter words, the largest group of vowel endings. A closes 15, E and I 14 each, then Y at 7 and U at 6, so O leads every other vowel.
Which two-letter O words score highest?
ZO scores 11 points and JO 9, well clear of the rest of the group. KO follows at 6, while YO, HO and WO reach 5 points each.
Which two-letter O words are not in NWL2023?
IO, KO, OO and ZO are Collins-only, so 4 of the 17 are missing from North American games. The other 13, including TO, SO, DO, NO, GO and JO, play in both lists.

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