to slotto slot in into sth. zu etw. passen · in etw. hineinpassen · to slot sth. in ahead · etw. vorschalten · slotslot · 1 of 3. noun (1) · ˈslät · Synonyms of slot. 1. a. : a narrow opening or groove : slit, notch. a mail slot in a door. b. : a narrow