A transliteration of the English male given name Bill

clipping of ビルディング (birudingu, “(non-residential) building”).

abolish, obsolete / cessation / discarding, abandon

(slang) addict

What? What did you say?

whatchamacallit, X

nothing

what number, how many (used with a counter) / (used with も) many (used with a counter)

What?, Huh?

what / that thing (used in place of words you can't remember at the moment.)