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Plural of os1.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Anatomy) the plural of os2
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



n., pl. os•sa (ˈɒs ə)
a bone.
[1540–50; < Latin]



n., pl. o•ra (ˈɔr ə, ˈoʊr ə)
a mouth or orifice of the body.
[1730–40; < Latin ōs mouth]


1. Old Saxon.
2. Computers. operating system.


Chem. Symbol.


1. (in prescriptions) the left eye.
[< Latin oculus sinister]
2. old series.
3. ordinary seaman.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in classic literature ?
astonished people, 'Ora pro nobis Deum, alleluia!' At the same time
'Ritual' is the first-ever association of Rita Ora with both Jonas Blue and Tiesto.
A post shared by RITA ORA (@ritaora) on Aug 4, 2019 at 12:01pm PDT
The Kainga Whanau Ora initiative is an Iwi-led programme working with 167 families and whanau living in Housing New Zealand homes in Palmerston North.
A frequent visitor and vocal admirer of the Emirates, British superstar Rita Ora is no stranger to producing a musical hit, so has decided to combine two of her passions - a catchy song and Dubai - in the video for her latest release, New Look, off the 2018 album, Phoenix.
Rita Ora's new track is taking viewers on a ride through Dubai as the singer unveiled the music video of 'New Look' from her 2018 album, 'Phoenix'.
Ora, 28, later appeared at a party in Cannes in a striking diamond necklace and a white bustier dress.
At 21, Ora released her namesake debut album in the UK in 2012, garnering a massive hype and following around her music.
The first 15 minutes on the phone with an attorney is free to the ORA member.
Ora, who was born in Kosovo to Armenian parents, also revealed she used to put "numbing spray on my scalp" because of a painful hairstyle.