sociolinguistics

nuclear physics

(grammar) present perfect

(food, medicine) expiration date

(historical) a type of improvised, humorous short play popular during the eighteenth century

"Modern kana usage", the method of using kana to write Japanese that has been used after the 1946 (post-war) Japanese national language reform. Unlike its predecessor, it is almost entirely phonetic, reflecting modern language with little ambiguity.

(programming, object-oriented programming) object-oriented programming language

(grammar) present progressive form / (by extension, with で) making progress

(linguistics) "dialect dressup": appropriation of dialect features by a non-dialect speaker

disagreeable