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7-letter words with O as the 1st letter and A as the 7th letter

7-letter words starting with O and ending in A: 26 tournament-dictionary entries match this exact pattern.

26 wordsTop pick OCARINAHighest score OXYMORA 19

With O in 1st place, S is the most common 7th letter (251 words). The bar under each letter shows the size of its list.

  • Length
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15

Best words to play first 26 · most-used first

  • OCARINA9
  • OVERSEA10
  • ORGANZA17
  • OPUNTIA9
  • ODONATA8
  • OSMUNDA10
  • OLESTRA7
  • OROPESA9
  • OSTRACA9
  • OOGONIA8
  • OOTHECA12
  • OSTEOMA9
  • OLEARIA7
  • OSSETRA7
  • OSTRAKA11
  • OCTAPLA11
  • OMMATEA11
  • OMNIANA9
  • ONDATRA8
  • ONYCHIA15
  • OPHIURA12
  • OQUASSA16
  • OTALGIA8
  • OUGUIYA11
  • OVIPARA12
  • OXYMORA19
All valid words 26

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

  • OCARINA9
  • OCTAPLA11
  • ODONATA8
  • OLEARIA7
  • OLESTRA7
  • OMMATEA11
  • OMNIANA9
  • ONDATRA8
  • ONYCHIA15
  • OOGONIA8
  • OOTHECA12
  • OPHIURA12
  • OPUNTIA9
  • OQUASSA16
  • ORGANZA17
  • OROPESA9
  • OSMUNDA10
  • OSSETRA7
  • OSTEOMA9
  • OSTRACA9
  • OSTRAKA11
  • OTALGIA8
  • OUGUIYA11
  • OVERSEA10
  • OVIPARA12
  • OXYMORA19
Letters by positionIn 23% of these words the 4th letter is A.
2nd letter
  1. S19%
  2. C8%
  3. O8%
3rd letter
  1. T19%
  2. G12%
  3. E12%
4th letter
  1. A23%
  2. R15%
  3. N8%
5th letter
  1. T19%
  2. A19%
  3. N12%
6th letter
  1. R23%
  2. I19%
  3. N8%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 9 in Scrabble; OXYMORA tops the list with 19. Scores before board bonuses.
  1. 77 points: 3 words
  2. 8 points: 4 words
  3. 99 points: 6 words
  4. 10 points: 2 words
  5. 1111 points: 4 words
  6. 12 points: 3 words
  7. 1313 points: 0 words
  8. 14 points: 0 words
  9. 1515 points: 1 words
  10. 16 points: 1 words
  11. 1717 points: 1 words
  12. 18 points: 0 words
  13. 1919 points: 1 words
WordScrabbleWords With FriendsDictionaries
OXYMORA1919All three
ORGANZA1719All three
OQUASSA1617All three
ONYCHIA1515Collins only
OOTHECA1212All three
OVIPARA1214All three
OPHIURA1213Collins only
OSTRAKA1111Collins · NWL
OUGUIYA1113All three
OCTAPLA1114Collins only
OMMATEA1113Collins only
OVERSEA1011All three

That narrow shape produces 26 tournament-list entries, yet none ranks among common English vocabulary. OCARINA and ORGANZA are recognizable footholds; OOTHECA, OSTRACA, and OPUNTIA are more specialized. These unusual endings make letter placement more dependable than meaning-based guesses in this pattern.

The O-to-A pattern at a glance

  • Exactly 26 seven-letter entries begin with O and finish with A.
  • OXYMORA leads the score list at 19 points, ahead of ORGANZA at 17.
  • Collins includes 25 matches, compared with 18 in NWL2023 and 14 in ENABLE.
  • None of the matches is classified as common by our frequency measure.
  • OCARINA, ORGANZA, and OLESTRA are recognizable anchors among specialized terms.

How many 7-letter words start with O and end in A?

Only 26 seven-letter words start with O and end with A, so this is a tight pattern. The same A ending yields 77 matches after M, 90 after P, and 104 after A; O-ending-S patterns reach 251.

Tournament coverage varies: Collins accepts 25 matches, NWL2023 has 18, and ENABLE has 14. An entry can appear in one tournament list but not another, so check your game's word list before playing an unfamiliar word.

Only 20 matches have definitions in our word records. That gap matters for a pattern with specialist terms: OCARINA is a familiar example, while OOTHECA and OPUNTIA are less everyday vocabulary. Use known letters to narrow candidates instead of relying on a guessed meaning.

Scoring 7-letter words starting with O and ending in A

OXYMORA tops the raw-score ranking at 19, with ORGANZA at 17 and OQUASSA at 16. On a standard Scrabble rack, using all seven tiles earns the bingo bonus before premium-square effects.

Don't chase OXYMORA blindly: its X raises the tile total, but the word needs a precise rack. ORGANZA offers a Z alternative, and OQUASSA is another high-scoring option. Treat each as a rack-specific play, then check whether the board allows a safe placement.

The seven-letter constraint changes the decision: holding one tile for a better placement can forfeit the bingo bonus. Compare that bonus with the points available from a shorter play before committing your full rack.

Tip: When all seven rack letters fit, calculate the bingo bonus before splitting the rack; OXYMORA's 19-point tile score is only its starting value.

Questions people ask

Are all 26 O-to-A words accepted in every word game?
No; dictionary coverage differs across tournament word lists. Collins includes 25 matches, NWL2023 includes 18, and ENABLE includes 14. An unfamiliar entry may be valid in one game but rejected in another, so check the word list used by your game before playing it.
Which O-to-A word scores highest in Scrabble?
OXYMORA has the highest raw tile score at 19 points. ORGANZA follows at 17, while OQUASSA scores 16. Board premiums can change the final total, and using all seven tiles on a standard Scrabble rack also earns the bingo bonus.
Are 7-letter words beginning with O and ending in A common?
No; none of the 26 matches is classified as common by our frequency measure. OCARINA and ORGANZA are more recognizable examples, while entries such as OOTHECA and OPUNTIA are more specialized.

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