1noun
a mouth or mouthlike opening
01 Word definition
os
2 letters · 1 vowel · 1 consonant
Is OS a word?
Yes. OS is a 2-letter noun. a mouth or mouthlike opening Check the official dictionary for your particular word game before playing it.
Correct spelling
O-SHow do you spell OS?
OS contains 2 letters, begins with O, and ends with S.
Check another spelling →Meaning and definition
2noun
rigid connective tissue that makes up the skeleton of vertebrates
Synonyms
Source: Open English WordNet 2025 (CC BY 4.0) ↗bone
02 Letter breakdown
How is OS spelled?
O1S2
03 Word-game status
Can you play OS?
UnscramblerHQ dictionary
This spelling is present in our broad English solver dictionary.
Scrabble
Base tile value: 2 points. Confirm eligibility in the official word list used for your region and edition.
Words With Friends
Base tile value: 2 points. Confirm eligibility inside the current game dictionary.
04 Exact anagrams
The same letters, rearranged.
FAQ Quick answers
About OS.
How do you spell OS?
OS is spelled O-S. It contains 2 letters.