past tense and perfective aspect of 行く (iku) [godan]

going

to go; to come to one's place / to (a letter) be delivered / to depart / to rely (on a method) / (年が～) to age / (うまく～) to go well / イく: (slang) to have an orgasm, to come, to cum

volitional form of 行く (iku, yuku) [godan]

negative of 行く (iku, yuku) [godan]

more haste, less speed; slow and steady wins the race

make hay while the sun shines, strike while the iron is hot, act on an opportunity promptly

everywhere

(only in compounds, music) hardcore

a state of stopping; stagnate