Eh Definition

ā, ĕ
interjection
Used in asking a question or in seeking repetition or confirmation of a statement.
American Heritage
Used to express doubt or surprise.
Webster's New World
Used to ascertain or reinforce a listener's interest or agreement.
American Heritage
Used to make an inquiry and equivalent to “What did you say?” or “Don't you agree?”
Webster's New World
abbreviation
(travel, aviation) Eastern Hemisphere (travel within or between IATA areas 2 and 3).
Wiktionary

The ccTLD for Western Sahara (not assigned; no DNS) as assigned by the IANA.

Wiktionary
suffix

(humorous, slang, Internet) Used to replace -y, often in lolcat speak.

Kitteh (for kitty)
Sunneh (for sunny)
Wiktionary