a window, an opening in a wall / (computing) a window, part of software's graphical user interface

fresh

freshness

to open / to make (a hole)

to broaden; to become wide / to develop; to progress; to improve / (of a person) to be enlightened; to be inspired; (perfect tense) to be sharp or clever

to inhale / to smoke (tobacco or other drugs) / to suck / to absorb

air, atmosphere / mood, atmosphere, usually with peer pressure

show window, shop window, showcase

(idiomatic) to have luck turn one's way

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