Definition of "eh"

(informal, chiefly Canada, UK) Used as a tag question, to emphasise what goes before or to request that the listener express an opinion about what has been said.  examples

In isolation, a request for repetition or clarification of what has just been said; compare what, pardon.  examples

In isolation, expressing surprise or confusion; compare wha, huh, za.  examples

(chiefly Canada) An interjection used to ascertain the continued attention of an individual addressed by the speaker.  examples

Expressing apathy or lack of enthusiasm; meh.  quotations  examples

(Philippines) Expressing apprehension following or preceding a reasoning or excuse; uh.  examples

To use the interjection eh.  examples

(informal, predicative only) Of mediocre quality; unremarkable.  examples

(Singlish, usually impolite) Hey, oi; said to get someone's attention.  examples

(uncommon) An interjection expressing disapproval.  examples

(with rising pitch) Huh?; expresses confusion.  examples