os

¹ American  

[os] / ɒs /

noun

plural

ossa

1. Anatomy, Zoology. a bone.

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O.S. ² American  

Or o.s.

abbreviation

1. (in prescriptions) the left eye.

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os ³ American  

[os] / ɒs /

noun

plural

ora

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

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O.S. ⁴ American  

abbreviation

1. Old Saxon. Also OS

2. (of the calendar) Old Style.

3. ordinary seaman. Also o.s.

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os ⁵ American  

[ohs] / oʊs /

noun

plural

osar

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

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Os ⁶ American  

1. Symbol, Chemistry. osmium.

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OS ⁷ American  

abbreviation

1. Old Saxon. Also O.S.

2. Computers. operating system.

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o/s ⁸ American  

1. (of the calendar) Old Style.

2. out of stock.

3. (in banking) outstanding.

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O/S ⁹ American  

1. (of the calendar) Old Style.

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OS ¹ British  

abbreviation

1. Old School

2. Old Style (method of reckoning dates)

3. Ordinary Seaman

4. (in Britain) Ordnance Survey

5. outsize

6. Old Saxon (language)

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o.s. ² British  

abbreviation

1. out of stock

2. banking outstanding

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Os ³ British  

symbol

1. osmium

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os ⁴ British  

/ ɒs /

noun

1. anatomy the technical name for bone

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os ⁵ British  

/ ɒs /

noun

1. anatomy zoology a mouth or mouthlike part or opening

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os ⁶ British  

/ əʊs /

noun

1. another name for esker

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Etymology

Origin of os¹

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

Origin of O.S.²

From Latin oculus sinister

Origin of os³

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

Origin of os⁵

First recorded in 1840–50 as osar (plural); from Swedish ås (plural åsar ) “ridge (of a hill),” from Old Norse áss “thick pole or main beam; rocky ridge”

Example Sentences

A new Longevity Preparedness Index from John Hancock and MIT AgeLab os based on a survey of over 1,300 adults and focused on eight areas such as finance, home, health and community.

From MarketWatch

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

From Salon

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 New York Times

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

From Literature

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

From Los Angeles Times