Word.ws English Dictionary

Plural of os

irregular plural

The plural of os is ora.

Forms of os

Singularos /ˌoʊ ˈɛs/
Pluralora
Countablecountable

Plural of os by meaning

  1. an opening or entrance to a passage, particularly one at either end of the cervix...: ora
  2. synonym of bone.: ossa
  3. an osar or esker.: osar

Ora in a sentence

  • Once clear of Manila bay, the Nuestra Señora de Guia picked up the vendavels, or winds.1925, Percy A. Hill, Romantic Episodes in Old Manila: Church and State in the Hands of a Merry Jester, Time, page 53. From the entry vendavel
  • This tunicate withered hag the Señora had my financial number.1976 September, Saul Bellow, Humboldt’s Gift, New York, N.Y.: Avon Books, →ISBN, page 404. From the entry tunicate
  • An incision was made around the ora serrata of each eye, and the anterior cornea, lens, capsule, and associated iris pigmented epithelium were removed.2003, Gibbs et al., Proceedings of the National Academy of Sciences, volume 100, number 11, page 6482. From the entry iris pigmented epithelium

Meaning of os

  1. noun Synonym of bone.
  2. noun An opening or entrance to a passage, particularly one at either end of the cervix, internal (to the uterus) or external (to the vagina).
  3. noun An osar or esker.

Full definition of os

Other irregular plurals

Questions about the plural of os

What is the plural of os?
The plural of os is ora.
Is os countable?
Os is a countable noun.

Source and license

Adapted from Wiktionary: os (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

Last updated:

Cite this page: “Plural of os.” Word.ws, https://word.ws/plural/os. Based on Wiktionary, CC BY-SA 4.0.