As nouns the difference between relevance and relativity
is that relevance
is the property or state of being relevant or pertinent while relativity
is the state of being relative to something else.
* relevancy (much less common)
The property or state of being relevant or pertinent.
The state of being relative to something else.
(physics) The principle that the laws of physics should be the same for all observers.
(relativity) Either of two theories (special relativity or general relativity) developed by German-American physicist . Also called Einsteinian relativity .