Os

See also: Appendix:Variations of "os"

Translingual

Symbol

Os

1. (chemistry) Symbol for osmium.

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English

Noun

Os

1. plural of O

Usage notes

• Opinions vary regarding the use of apostrophes when forming the plurals of letters of the alphabet. New Fowler's Modern English Usage, after noting that the usage has changed, states on page 602 that "after letters an apostrophe is obligatory." The 15th edition of The Chicago Manual of Style states in paragraph 7.16, "To avoid confusion, lowercase letters ... form the plural with an apostrophe and an s". The Oxford Style Manual on page 116 advocates the use of common sense.

Anagrams

• S&O, SO, So, So., s.o., s/o, so

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German

Etymology 1

Borrowed from Latin os, ultimately from Proto-Indo-European *h₃ésth₁.

Pronunciation

• IPA^(key): [ɔs]

Noun

Os n (genitive Os, plural Ossa)

1. (medicine) os, bone (bone)

Etymology 2

Borrowed from Latin ōs.

Pronunciation

• IPA^(key): [oːs]

Noun

Os n (genitive Os, plural Ora)

1. (medicine) os, an opening

Further reading

• “Os” in Duden online
• “Os” in Duden online

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Norwegian Bokmål

Proper noun

Os

1. A municipality of Hedmark, Norway
2. A municipality of Hordaland, Norway. To be merged with Fusa on 1 January 2020 under the new name of Bjørnafjorden.

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Norwegian Nynorsk

Proper noun

Os

1. A municipality of Hedmark, Norway
2. A municipality of Hordaland, Norway