Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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or

 
pronunciation:
or
features:
Homophone Note
part of speech: conjunction
definition 1: used to indicate alternatives.
Open the door or the window.Either you go or I will.
definition 2: used to indicate similar things or alternative ways of referring to such things.
You may call them stars or suns.
definition 3: used to indicate a lack of certainty.
I'll be there in three or four hours.
Homophone Note
The words or, oar, and ore sound alike but have different meanings.