Meaning of ஒன்று in English

One of two; the one or the other; -- properly used of two things, but sometimes of a larger number, for any one.
Each of two; the one and the other; both; -- formerly, also, each of any number.
precedes two, or more, coordinate words or phrases, and is introductory to an alternative. It is correlative to or.
A suffix indicating that the substance, in the name of which it appears, is a ketone; as, acetone.
A termination indicating that the hydrocarbon to the name of which it is affixed belongs to the fourth series of hydrocarbons, or the third series of unsaturated hydrocarbonsl as, nonone.
Being a single unit, or entire being or thing, and no more; not multifold; single; individual.
Denoting a person or thing conceived or spoken of indefinitely; a certain. "I am the sister of one Claudio" [Shak.], that is, of a certain man named Claudio.
Pointing out a contrast, or denoting a particular thing or person different from some other specified; -- used as a correlative adjective, with or without the.
Closely bound together; undivided; united; constituting a whole.
Single in kind; the same; a common.
Single; inmarried.
A single unit; as, one is the base of all numbers.
A symbol representing a unit, as 1, or i.
A single person or thing.
Any person, indefinitely; a person or body; as, what one would have well done, one should do one's self.
To cause to become one; to gather into a single whole; to unite; to assimilite.
Once.