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6-letter words with O as the 1st letter and S as the 3rd letter

Thirteen six-letter words place O first and S third; OYSTER and OUSTED are recognizable examples in a sparse set.

13 wordsTop pick OYSTERHighest score OXSLIP 15

2 of 13 are everyday words (15%). A mix of familiar words and game-only finds.

With O in 1st place, T is the most common 3rd letter (96 words). The bar under each letter shows the size of its list.

  • Length
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Best words to play first 13 · most-used first

  • OYSTER9
  • OUSTED7
  • OBSESS8
  • ONSIDE7
  • OUSTER6
  • ONSETS6
  • OPSINS8
  • OSSIFY12
  • OSSEIN6
  • OBSIGN9
  • OOSIER6
  • OUSELS6
  • OXSLIP15
All valid words 13

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

  • OBSESS8
  • OBSIGN9
  • ONSETS6
  • ONSIDE7
  • OOSIER6
  • OPSINS8
  • OSSEIN6
  • OSSIFY12
  • OUSELS6
  • OUSTED7
  • OUSTER6
  • OXSLIP15
  • OYSTER9
Letters by positionIn 38% of these words the 4th letter is I.
2nd letter
  1. U23%
  2. B15%
  3. N15%
4th letter
  1. I38%
  2. E31%
  3. T23%
5th letter
  1. E31%
  2. I15%
  3. S8%
6th letter
  1. S31%
  2. R23%
  3. N15%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
WordScrabbleWords With FriendsDictionaries
OXSLIP1517Collins only
OSSIFY1211All three
OYSTER98All three
OBSIGN912Collins only
OBSESS89All three
OPSINS810All three
OUSTED78All three
ONSIDE78All three
OUSTER67All three
ONSETS67All three
OSSEIN67All three
OUSELS68All three

OYSTER, OUSTED, and OBSESS give this pattern a few familiar faces, but the full group has just 13 matches. Two are common, and the average base score is 8.1. For a tight clue, the unusually small set is more valuable than broad vocabulary recall.

At a glance a short O-S list

  • Only 13 entries meet the pattern, with two common words.
  • S ends four words; R ends three.
  • OXSLIP leads scoring at 15 points.

How do the endings narrow the choices?

OYSTER is the clearest everyday noun, while OUSTED and OBSESS are familiar forms with the same fixed letters. The score leader is OXSLIP at 15, despite being far less likely to come to mind. OSSIFY follows at 12, then OYSTER scores 9.

Four matches end in S, including ONSETS and OPSINS, while three finish in R, including OYSTER and OUSTER. The other six endings appear once each. With just 13 total matches, even one confirmed final tile removes a substantial share of the candidates.

Collins contains all 13 entries, while ENABLE and NWL2023 each contain 10. That edition spread is substantial for such a small group, so OYSTER is a safer recognition point than a form like OBSIGN. The ending counts provide a second filter: once S and R are ruled out, six single-occurrence endings remain among only 13 choices.

OUSTER and OYSTER differ by one interior letter, making crossing tiles especially valuable. ONSETS and OPSINS add two S-ending alternatives, while OOSIER is one of the six singleton endings. A narrow list changes the solving habit: check every crossing before spending time inventing candidates that the pattern cannot contain.

A practical clue for this pattern

Tip

A repeated letter clue can mislead: the third-position S does not mean every word ends with a plural S. Check the full pattern, especially for OYSTER and OUSTER.

Questions people ask

How many six-letter words have O first and S third?
There are 13 tournament-dictionary matches. OYSTER, OUSTED, OBSESS, and ONSIDE are among the familiar examples; the group also contains less common entries such as OSSEIN and OBSIGN.
Which word in this pattern scores highest?
OXSLIP leads the base scores at 15 points. OSSIFY is next at 12, while OYSTER and OBSIGN each score 9. Premium squares can change the move total after placement.
Which final letter appears most often?
S is the most frequent ending, with four matches, followed by R with three. N appears twice; each of the remaining endings occurs once, making a known final tile a strong filter.

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