how many / how old (used with small children)

tediousness, monotony / boredom, dreariness

mining

killing time

a visit by a student's guardians to observe the class

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

middle, medium / average; neither good nor poor / during; being in the process of doing / second volume of a three volume set