6-letter words with I as the 3rd letter and O as the 4th letter

6-letter words with I as the 3rd letter and O as the 4th letter: 34 tournament-dictionary matches, from unions to idiocy.

34 wordsTop pick UNIONSHighest score AXIOMS 15

4 of 34 are everyday words (12%). A mix of familiar words and game-only finds.

With I in 3rd place, N is the most common 4th letter (250 words). The bar under each letter shows the size of its list.

  • Length
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Best words to play first 34 · most-used first

  • UNIONS6
  • IDIOTS7
  • ONIONS6
  • OPIOID9
  • PRIORY11
  • IDIOCY12
  • AXIOMS15
  • IDIOMS9
  • ODIOUS7
  • PRIORS8
  • ANIONS6
  • ORIOLE6
  • GLIOMA9
  • SCIONS8
  • TRIODE7
  • PRIONS8
  • BRIONY11
  • THIOLS9
  • GRIOTS7
  • ONIONY9
  • AXIONS13
  • ARIOSO6
  • AZIONE15
  • OTIOSE6
  • AVIONS9
  • PSIONS8
  • PAIOCK14
  • APIOLS8
  • ARIOSE6
  • ARIOSI6
  • INIONS6
  • TRIOLS6
  • TRIORS6
  • TRIOSE6
All valid words 34

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

  • ANIONS6
  • APIOLS8
  • ARIOSE6
  • ARIOSI6
  • ARIOSO6
  • AVIONS9
  • AXIOMS15
  • AXIONS13
  • AZIONE15
  • BRIONY11
  • GLIOMA9
  • GRIOTS7
  • IDIOCY12
  • IDIOMS9
  • IDIOTS7
  • INIONS6
  • ODIOUS7
  • ONIONS6
  • ONIONY9
  • OPIOID9
  • ORIOLE6
  • OTIOSE6
  • PAIOCK14
  • PRIONS8
  • PRIORS8
  • PRIORY11
  • PSIONS8
  • SCIONS8
  • THIOLS9
  • TRIODE7
  • TRIOLS6
  • TRIORS6
  • TRIOSE6
  • UNIONS6
Letters by positionIn 56% of these words the 6th letter is S.
1st letter
  1. A26%
  2. O18%
  3. P15%
2nd letter
  1. R38%
  2. N15%
  3. D12%
5th letter
  1. N35%
  2. S15%
  3. L12%
6th letter
  1. S56%
  2. E18%
  3. Y12%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 6 in Scrabble; AXIOMS tops the list with 15. Scores before board bonuses.
  1. 66 points: 12 words
  2. 7 points: 4 words
  3. 88 points: 5 words
  4. 9 points: 6 words
  5. 1010 points: 0 words
  6. 11 points: 2 words
  7. 1212 points: 1 words
  8. 13 points: 1 words
  9. 1414 points: 1 words
  10. 15 points: 2 words
WordScrabbleWords With FriendsDictionaries
AXIOMS1516All three
AZIONE1516Collins only
PAIOCK1416Collins only
AXIONS1314All three
IDIOCY1212All three
PRIORY1111All three
BRIONY1112All three
OPIOID910All three
IDIOMS910All three
GLIOMA912All three
THIOLS99All three
ONIONY910All three

The pattern is _ _ I O _ _, a narrow search that rules out many familiar six-letter words straight away. Only four of its 34 entries rank among the most common English words. That makes recognizable options such as ONIONS and UNIONS easier to spot, while less familiar forms may need a dictionary check before a word-game play.

What stands out in the I-O pattern

  • The fixed letters leave 34 six-letter matches across tournament dictionaries.
  • S is the final letter in 19 matches; E comes next with six.
  • A leads the opening letters with nine matches, ahead of O with six.
  • AXIOMS and AZIONE tie for the top score at 15 points.

How do 6-letter words with I third and O fourth begin and end?

A is the most common first letter: examples include ANIONS, AXIOMS, AXIONS and AZIONE. O starts six words, including ONIONS and ORIOLE, while P and T each start five. The variety at the front gives you several ways to test a pattern without changing its fixed middle letters.

The ending is much less balanced. Nineteen matches finish in S, including UNIONS, IDIOTS, IDIOMS and SCIONS; six finish in E.

Four end in Y, such as IDIOCY and PRIORY. If your final tile is S, try that ending first; an E or Y narrows the search quickly.

Which 6-letter words with I third and O fourth score well?

AXIOMS and AZIONE lead the scores at 15 points apiece. AXIONS follows at 13, and IDIOCY scores 12. AXIOMS is the more familiar high-value candidate; its X supplies much of the punch, so save it for a premium square when the board allows.

The score leaders are not all everyday plays: AZIONE and PAIock are less familiar than ONIONS or UNIONS. Dictionary coverage also differs: Collins includes 34 matches, compared with 29 in NWL2023 and 28 in ENABLE. Check your game's word list before committing to an unfamiliar entry.

Questions people ask

How many six-letter words have I as the third letter and O as the fourth?
There are 34 tournament-dictionary matches for the _ _ I O _ _ pattern. Collins contains all 34, while NWL2023 includes 29 and ENABLE includes 28. The dictionaries overlap, so those counts are not separate groups to add together.
Which word in this pattern scores the most?
AXIOMS and AZIONE tie for the highest score, at 15 points each. AXIOMS is a recognizable option with a valuable X; AZIONE is less familiar, so confirm it is accepted in your game before playing it.
Which first letter covers the most matches?
A opens nine matches, including ANIONS, AXIOMS, AXIONS and AZIONE. O starts six words, such as ONIONS and ORIOLE, while P and T each start five. Testing A first covers more of the set than any other opening.

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