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View synonyms for

os

1

[ os ]

noun

plural ossa
  1. Anatomy, Zoology. a bone.


O.S.

2
or o.s.

abbreviation for

  1. (in prescriptions) the left eye.

os

3

[ os ]

noun

plural ora
  1. Anatomy, Zoology. a mouth or orifice of the body.

O.S.

4

abbreviation for

  1. (of the calendar) Old Style ( def 2 ).
  2. ordinary seaman. Also o.s.

os

5

[ ohs ]

noun

plural osar
  1. Geology. an esker, especially when of great length.

Os

6
  1. Symbol, Chemistry. osmium.

OS

7

abbreviation for

  1. Old Saxon ( def ). Also O.S.

o/s

8
  1. (of the calendar) Old Style.
  2. out of stock.
  3. (in banking) outstanding.

O/S

9
  1. (of the calendar) Old Style.

o.s.

1

abbreviation for

  1. out of stock
  2. banking outstanding
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Os

2

the chemical symbol for

  1. osmium
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

OS

3

abbreviation for

  1. Old School
  2. Old Style (method of reckoning dates)
  3. Ordinary Seaman
  4. (in Britain) Ordnance Survey
  5. outsize
  6. Old Saxon (language)
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

os

4

/ ɒ /

noun

  1. anatomy the technical name for bone
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

os

5

/ ɒ /

noun

  1. anatomy zoology a mouth or mouthlike part or opening
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

os

6

/ əʊ /

noun

  1. another name for esker
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of os1

First recorded in 1540–50; from Latin os (inflectional stem oss- ) “bone”

Origin of os2

From Latin oculus sinister

Origin of os3

First recorded in 1730–40; from Latin ō (inflectional stem ō- ) “mouth”

Origin of os4

First recorded in 1840–50 as osar (plural); from Swedish å (plural åar ) “ridge (of a hill),” from Old Norse á “thick pole or main beam; rocky ridge”
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Word History and Origins

Origin of os1

C16: from Latin: bone; compare Greek osteon

Origin of os2

C18: from Latin

Origin of os3

C19 osar (pl), from Swedish å (sing) ridge
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Example Sentences

Examples have not been reviewed.

As Kessler wisely noted at the top os his lengthy fact check of Trump's "assassination" lie, the only person who is asserting a right to assassinate political opponents is Donald Trump.

From

"WOW rita ora really ate this look up i am fully obsessed with it!!" wrote one fan on Twitter.

From

Texas Monthly magazine called “Señora Dolores Treviño,” a painting of his mother, “one of the best paintings of an artist’s mother since Whistler’s.”

From

Newton disliked infinitesimals, the little os in his fluxion equations that sometimes acted like zeros and sometimes like nonzero numbers.

From

Is the museum presenting the history of cinema ora history of cinema?

From

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orzoO.S.A.