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6-letter words with O as the 1st letter and S as the 2nd letter

6-letter words with O first and S second: 25 matches, led by OSSIFY at 12 points and OSPREY at 11.

25 wordsTop pick OSCARSHighest score OSSIFY 12

1 of 25 are everyday words (4%). Mostly rare words: great for Scrabble, tough for daily puzzles.

  • 1st 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

With O in 1st place, U is the most common 2nd letter (80 words). 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 25 · most-used first

  • OSCARS8
  • OSPREY11
  • OSMIUM10
  • OSTOMY11
  • OSMUND9
  • OSTLER6
  • OSTIUM8
  • OSMOSE8
  • OSSIFY12
  • OSCULA8
  • OSETRA6
  • OSIERS6
  • OSTEAL6
  • OSSEIN6
  • OSCINE8
  • OSCULE8
  • OSHACS11
  • OSIERY9
  • OSMATE8
  • OSMICS10
  • OSMOLE8
  • OSMOLS8
  • OSMOUS8
  • OSTENT6
  • OSTIAL6
All valid words 25

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

  • OSCARS8
  • OSCINE8
  • OSCULA8
  • OSCULE8
  • OSETRA6
  • OSHACS11
  • OSIERS6
  • OSIERY9
  • OSMATE8
  • OSMICS10
  • OSMIUM10
  • OSMOLE8
  • OSMOLS8
  • OSMOSE8
  • OSMOUS8
  • OSMUND9
  • OSPREY11
  • OSSEIN6
  • OSSIFY12
  • OSTEAL6
  • OSTENT6
  • OSTIAL6
  • OSTIUM8
  • OSTLER6
  • OSTOMY11
Letters by positionIn 32% of these words the 3rd letter is M.
3rd letter
  1. M32%
  2. T24%
  3. C16%
4th letter
  1. I24%
  2. E20%
  3. O20%
5th letter
  1. L16%
  2. R16%
  3. N12%
6th letter
  1. S24%
  2. E20%
  3. Y16%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 8 in Scrabble; OSSIFY tops the list with 12. Scores before board bonuses.
  1. 66 points: 7 words
  2. 7 points: 0 words
  3. 88 points: 10 words
  4. 9 points: 2 words
  5. 1010 points: 2 words
  6. 11 points: 3 words
  7. 1212 points: 1 words
WordScrabbleWords With FriendsDictionaries
OSSIFY1211All three
OSPREY1111All three
OSTOMY1111All three
OSHACS1111Collins only
OSMIUM1013All three
OSMICS1012All three
OSMUND912All three
OSIERY98Collins only
OSCARS89Collins · NWL
OSTIUM810All three
OSMOSE89All three
OSCULA811All three

The fixed opening OS narrows the search to a compact group, but the words vary sharply in familiarity and dictionary coverage. Only one of these 25 words ranks among the top 25,000 English words by frequency. The strongest play is OSSIFY; endings are more varied than the shared first two letters suggest.

At a glance: the OS pattern

  • There are 25 six-letter words beginning OS across the tournament word lists.
  • Collins includes all 25; NWL2023 includes 20, and ENABLE includes 18.
  • OSSIFY scores 12 points, the highest score among these examples.
  • OSPREY, OSTOMY, and OSHACS each score 11 points.
  • The final letter S appears most often, followed by E and Y.

Which OS words score highest?

OSSIFY leads at 12 points, while OSPREY, OSTOMY, and OSHACS tie at 11. OSMIUM and OSMICS score 10 each. When the board offers a premium square, compare the placement of the high-value letters rather than choosing by familiarity alone.

The endings break the pattern open: six words finish in S, five in E, and four in Y. A, L, and M each close two words; D and N appear once apiece. That spread makes the final letter a useful second filter when you already know the opening OS.

The score leaders are not necessarily the easiest words to remember. OSSIFY is the clear points leader, while the group also includes specialist-looking forms such as OSHACS and OSMICS. Treat the score ranking as a board-play clue, not a promise that every opponent will recognize each entry.

How to use 6-letter words with O first and S second

Start with the known OS prefix, then use any confirmed final letter to cut down the candidates. S, E, and Y account for the most endings, but the less common endings D and N still have a match. Check your game's word list before relying on an unfamiliar form.

  1. For a high score, check whether OSSIFY fits the open squares.
  2. If the word ends in Y, compare OSPREY, OSTOMY, and OSIERY.
  3. Use the final-letter counts to test S, E, or Y before rarer endings.
  4. For a related pattern, compare the O-R and O-U opening groups.

Questions people ask

How many six-letter words start with OS?
There are 25 six-letter words starting with OS in Collins, compared with 20 in NWL2023 and 18 in ENABLE. Those totals do not mean every game accepts every word, so check the word list used in your match before playing an unfamiliar entry.
What is the highest-scoring six-letter OS word?
OSSIFY is the highest scorer here at 12 points. OSPREY, OSTOMY, and OSHACS follow at 11 points each, with OSMIUM and OSMICS at 10. Board premiums can change a play's total, so these figures are the base scores rather than a placement-specific result.
Which final letter is most common in these OS words?
S is the most common ending, appearing in six words; E comes next with five, followed by Y with four. A, L, and M each occur twice, while D and N each occur once. Use those counts to narrow a pattern without ruling out a less frequent ending.

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