Relativity

[relə'tɪvɪtɪ] or [,rɛlə'tɪvəti]

(noun.) the quality of being relative and having significance only in relation to something else.

(noun.) (physics) the theory that space and time are relative concepts rather than absolute concepts.

Editor: Stanton--From WordNet

(n.) The state of being relative; as, the relativity of a subject.

Typed by Elvin