7-letter words with S as the 3rd letter and I as the 6th letter

7-letter words with S as the 3rd letter and I as the 6th letter number 99, including familiar choices such as sustain, biscuit, and insulin.

99 wordsTop pick SUSTAINHighest score POSTFIX 19

9 of 99 are everyday words (9%). Mostly rare words: great for Scrabble, tough for daily puzzles.

With S in 3rd place, E is the most common 6th letter (399 words). The bar under each letter shows the size of its list.

  • Length
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
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  • 14
  • 15

Best words to play first 99 · most-used first

  • SUSTAIN7
  • DESPAIR10
  • INSULIN7
  • KASHMIR16
  • BISCUIT11
  • DISDAIN9
  • GASTRIC10
  • ARSENIC9
  • MASONIC11
  • ABSTAIN9
  • NOSTRIL7
  • INSIPID10
  • DUSTBIN10
  • MISLAID10
  • ROSALIA7
  • CESSPIT11
  • ROSEHIP12
  • MASTOID10
  • POSTFIX19
  • WASSAIL10
  • ROSARIA7
  • GASTRIN8
  • DISCOID11
  • BOSONIC11
  • DISTAIN8
  • DESPOIL10
  • BASIDIA10
  • POSITIF12
  • DYSURIA11
  • UPSTAIR9
  • PUSHPIN14
  • BASILIC11
  • CYSTOID13
  • UNSPLIT9
  • HISTRIO10
  • PISSOIR9
  • BESTRID10
  • BUSHTIT12
  • ROSOLIO7
  • DISJOIN15
  • UNSTAID8
  • DESTAIN8
  • DESMOID11
  • EISWEIN10
  • BUSHPIG15
  • UNSOLID8
  • RESILIN7
  • PASQUIL18

Showing the top 48 of 99 words. See every valid word

All valid words 99

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

  • ABSTAIN9
  • ADSUKIS12
  • ARSENIC9
  • BASHLIK16
  • BASIDIA10
  • BASILIC11
  • BESTAIN9
  • BESTRID10
  • BISCUIT11
  • BOSONIC11
  • BUSHPIG15
  • BUSHTIT12
  • BYSSOID13
  • CASSPIR11
  • CESSPIT11
  • CESTOID10
  • CESTUIS9
  • CISSOID10
  • COSMOID12
  • CYSTEIN12
  • CYSTOID13
  • DESMOID11
  • DESPAIR10
  • DESPOIL10
  • DESTAIN8
  • DISCOID11
  • DISDAIN9
  • DISJOIN15
  • DISOMIC12
  • DISTAIN8
  • DISTRIX15
  • DUSTBIN10
  • DYSODIL12
  • DYSURIA11
  • DYSURIC13
  • EASTLIN7
  • EISWEIN10
  • EOSINIC9
  • FISHGIG15
  • FUSARIA10
  • GASTRIC10
  • GASTRIN8
  • HISTOID11
  • HISTRIO10
  • INSANIE7
  • INSIPID10
  • INSULIN7
  • KASHMIR16
  • MASHLIM14
  • MASHLIN12
  • MASONIC11
  • MASTOID10
  • MESONIC11
  • MESQUIN18
  • MESQUIT18
  • MISCOIN11
  • MISEDIT10
  • MISHMIS14
  • MISJOIN16
  • MISLAID10
  • MISLAIN9
  • MISSAID10
  • MISSUIT9
  • MISWRIT12
  • MUSCOID12
  • NOSTRIL7
  • OESTRIN7
  • OPSONIC11
  • OPSONIN9
  • OSSIFIC12
  • PASQUIL18
  • PISSOIR9
  • POSITIF12
  • POSTFIX19
  • PUSHPIN14
  • RESILIN7
  • RESPLIT9
  • ROSALIA7
  • ROSARIA7
  • ROSEHIP12
  • ROSOLIO7
  • SESELIS7
  • SOSATIE7
  • SUSTAIN7
  • TESTRIL7
  • UNSLAIN7
  • UNSOLID8
  • UNSPLIT9
  • UNSTAID8
  • UNSTRIP9
  • UPSTAIR9
  • VASSAIL10
  • VESPOID13
  • VESSAIL10
  • VISCOID13
  • WASABIS12
  • WASSAIL10
  • WASTRIE10
  • WESTLIN10
Letters by positionIn 27% of these words the 4th letter is T.
1st letter
  1. M17%
  2. D14%
  3. B10%
2nd letter
  1. I23%
  2. E20%
  3. A17%
4th letter
  1. T27%
  2. S10%
  3. H9%
5th letter
  1. O17%
  2. A16%
  3. R15%
7th letter
  1. N24%
  2. D18%
  3. C11%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 10 in Scrabble; POSTFIX tops the list with 19. Scores before board bonuses.
  1. 77 points: 14 words
  2. 8 points: 5 words
  3. 99 points: 14 words
  4. 10 points: 21 words
  5. 1111 points: 13 words
  6. 12 points: 13 words
  7. 1313 points: 5 words
  8. 14 points: 3 words
  9. 1515 points: 4 words
  10. 16 points: 3 words
  11. 1717 points: 0 words
  12. 18 points: 3 words
  13. 1919 points: 1 words
WordScrabbleWords With FriendsDictionaries
POSTFIX1920All three
PASQUIL1821All three
MESQUIT1820All three
MESQUIN1821Collins only
KASHMIR1616All three
BASHLIK1617Collins only
MISJOIN1620All three
DISJOIN1518All three
BUSHPIG1518All three
FISHGIG1516All three
DISTRIX1515Collins only
PUSHPIN1417All three

The fixed pattern is __S__I_: S occupies position three, and I sits in position six. Among these 99 entries, just 9 are common by frequency, so start with recognizable options such as sustain, despair, insulin, and biscuit. Collins includes all 99; ENABLE includes 66, a meaningful distinction when your game follows a specific word list.

7-letter words with S as the 3rd letter and I as the 6th letter

  • Collins lists 99 matching words; ENABLE lists 66 and NWL2023 lists 71.
  • Only 9 matches are common by our frequency measure, so familiar examples are a small subset.
  • Words ending in N lead with 24 entries; D is next, with 18.
  • M is the most frequent opening letter, appearing in 17 matches.
  • POSTFIX tops the scoring list at 19 points; PASQUIL, MESQUIT, and MESQUIN score 18.

Which familiar words fit the pattern?

SUSTAIN, DESPAIR, INSULIN, and BISCUIT are recognizable matches. They show how varied the fixed letters can feel: SUSTAIN and DESPAIR are verbs, INSULIN is a noun, and BISCUIT names a familiar food. DISDAIN, GASTRIC, and ARSENIC add more everyday vocabulary without changing the S-at-three, I-at-six pattern.

Familiar words make up only 9 of the 99 matches. Other entries include technical or less common terms, so a solver may recognize a word that a particular game rejects. Collins accepts all 99, compared with 66 in ENABLE and 71 in NWL2023; check your game's word list before relying on an unfamiliar answer.

Which matching words score highest?

POSTFIX is the scoring leader at 19 points, while PASQUIL, MESQUIT, and MESQUIN each score 18 on the listed tile values. Their Q and X carry the weight; POSTFIX combines both high-value letters, making it the standout rack candidate. These are base word scores, before any board premium.

Position clues can narrow a rack quickly: lock S into slot three and I into slot six, then test endings. N closes 24 matches, while D closes 18; those endings account for a large share of the list. Search 7-letter words with S as the 3rd letter and I as the 6th letter by ending, then scan for letters you can play.

Questions people ask

What is the highest-scoring word with S third and I sixth?
POSTFIX is the highest scorer at 19 points. Its X and F contribute substantial tile value, and it combines both X and the fixed I in one playable word. PASQUIL, MESQUIT, and MESQUIN each score 18, one point behind.
How many common words match this pattern?
There are 9 common words among the 99 matches. Recognizable examples include SUSTAIN, DESPAIR, INSULIN, and BISCUIT. The rest include less familiar or specialized vocabulary, so commonness and dictionary acceptance are not the same thing.
Do all 99 words appear in every game dictionary?
No. Collins lists all 99 matches, while ENABLE includes 66 and NWL2023 includes 71. Those different totals mean an entry accepted in one word-game dictionary may not be valid in another, so check the list your game uses.

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