The long-vowel mark, which marks a long vowel in katakana (and less commonly in hiragana) when placed after a syllable.

no

(Okinawa) very, terribly

(men's speech) Contraction of すみません (sumimasen).

Contraction of っていうか (tte iu ka); Contraction of ってゆうか (tte yuu ka).

(informal) Alternative form of いや (iya)

(onomatopoeia) The sound of staring.

Alternative spelling of もう

(Internet slang) Alternative form of いってら

(slang, offensive, derogatory) woman, ho