(Internet slang, dated) Windows (an operating system)

to enter, go into, get into a place or a thing / to join a group or organization / to be contained (in), to be included (in) / to be a member of a group, set, category

window / (regional, dialect, Etchū region) a deep gap in a mountain ridge (so called for the way the wind blows through, like a window)

window

(grammar) Short for カ行変格活用 (ka-gyō henkaku katsuyō): k-irregular conjugation

(nonstandard, linguistics) The katakana syllable カ゚ (nga). Its equivalent in hiragana is か゚ (nga)

Alternative spelling of 開け胡麻 (“open sesame”)

open sesame!

(idiomatic) to have luck turn one's way

sneak into, slip into