Words Starting With O Ending in A

145 words starting with O and ending in A, from 3 to 15 letters. Pick a length to see its full list.

  • oda4
  • ora3
  • ova6
  • oba5
  • oca5
  • oka7
  • oma5
  • opa5
  • obia6
  • octa6
  • odea5
  • offa10
  • ohia7
  • okra8
  • okta8
  • olea4
  • olla4
  • orca6
  • orra4
  • ossa4
  • ouma6
  • oupa6
  • outa4
  • omega8
  • opera7
  • outta5
  • ocrea7
  • oidia6
  • okara9
  • oliva8
  • olona5
  • omasa7
  • omdda9
  • orgia6
  • orixa12
  • ossia5
  • ostia5
  • ouija12
  • ousia5
  • oyama10
  • ozena14
  • obelia8
  • ochrea11
  • oedema9
  • omenta8
  • omerta8
  • onycha14
  • optima10
  • oraria6
  • orbita8
  • organa7
  • orisha9
  • oscula8
  • osetra6
  • ottava9
  • ougiya10
  • ozaena15
  • ocarina9
  • octapla11
  • odonata8
  • olearia7
  • olestra7
  • ommatea11
  • omniana9
  • ondatra8
  • onychia15
  • oogonia8
  • ootheca12
  • ophiura12
  • opuntia9
  • oquassa16
  • organza17
  • oropesa9
  • osmunda10
  • ossetra7
  • osteoma9
  • ostraca9
  • occipita14
  • odontoma11
  • oedemata11
  • oiticica12
  • oligemia11
  • oliguria9
  • ombrella12
  • omnivora13
  • ongaonga10
  • opercula12
  • operetta10
  • opuscula12
  • orchella13
  • orchilla13
  • orchestra14
  • oceanaria11
  • octahedra15
  • octohedra15
  • oenomania11
  • oenothera12
  • oligaemia12
  • ommatidia14
  • omophagia17
  • omophoria16
  • opsomania13
  • osmeteria11
  • ossifraga13
  • osteomata11
  • otorrhoea12
  • odontalgia12
  • odontomata13
  • ophidiaria16
  • ophthalmia20
  • orthopedia16
  • orthopnoea15
  • orthoptera15
  • orthorexia20
  • osmophobia19
  • ostensoria10
  • osteocolla12
  • osteopenia12
  • ouvirandra14
  • ochlophobia23
  • oneirodynia15
  • opisthosoma18
  • orchestrina16
  • orthodontia15
  • odontophobia20
  • oligospermia17
  • onomatopoeia16
  • orchidomania20
  • osteomalacia16
  • osteosarcoma16
  • oligocythemia24
  • ophidiophobia26
  • opisthosomata20
  • ornithophobia23
  • oligocythaemia25
  • osteosarcomata18
  • oligodendroglia19
  • ophthalmophobia32
  • ophthalmoplegia28

Narrower Lists

Words Starting With O Ending in A: Questions

How many words starting with O and ending in A are there?

There are 145 words starting with O and ending in A in our dictionary, ranging from 3 to 15 letters long.

What is the longest word starting with O and ending in A?

OLIGODENDROGLIA is one of the longest at 15 letters, which is as long as these lists run.

What are some common words starting with O and ending in A?

ORCHESTRA, OCEANARIA, OCTAHEDRA are among the most familiar words starting with O and ending in A. Pick a word length to see the full list for that length.

Are these words starting with O and ending in A valid in Scrabble and Words With Friends?

Every word is drawn from a tournament word list, so most are playable everywhere. Open the list for a given length to filter it down to Scrabble US (NWL2023), Scrabble UK (CSW24) or Words With Friends.