One a. : Being a single unit, or entire being or thing, and no more; not multifold; single; individual.

One a. : 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.

One a. : 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.

One a. : Closely bound together; undivided; united; constituting a whole.

One a. : Single in kind; the same; a common.

One a. : Single; inmarried.

One n. : A single unit; as, one is the base of all numbers.

One n. : A symbol representing a unit, as 1, or i.

One n. : A single person or thing.

One indef. pron. : Any person, indefinitely; a person or body; as, what one would have well done, one should do one's self.

One v. t. : To cause to become one; to gather into a single whole; to unite; to assimilite.

Example:
How One could enroll in One of good architecture programs in One of the prominent universities?

Taxonomy
reading, Monday through Friday, newspaper, daily update, ONE shirt, white band, water bottle, gear, Adler, Kim Smith, Regional Field, Field Organizer, Store, Campus, USA, Hot Topics, The Gates Foundation, Living Proof.

Defination from the web:
ONE Campaign organizers.