す 空く Common word JLPT N3 Show inflections LinksSentence search for 空くSentence search for すくKanji details for 空Edit in JMdict Godan verb with 'ku' ending, Intransitive verb1. to become less crowded; to thin out; to get emptyどのしゃりょう車両がすいていますか。Which car is less crowded?Godan verb with 'ku' ending, Intransitive verb2. to be hungrySee also お腹が空くわたし私達はまだあまりおなかお腹はす空いていない。We aren't very hungry yet. Discussions Log in to talk about this word.