counter for irregularly shaped objects such as desks, armrests, and serving trays / counter for kami and shrines

end of a century / end of an era; fin de siècle / (chiefly fiction) end of the world

what

let's see; what have we got here

which (of three or more) / which one /

Nothing

Alternative form of 物置

story, genre (type of story)

(non-productive, with adjectives)

(informal) Alternative form of 物 (mono, “thing”)