n. 25B6; verb
I encountered a girl I used to know : MEET, meet by chance, run into, come across/upon, stumble across/on, chance on, happen on; informal bump into; archaic run against, rencounter.
we encountered a slight problem : EXPERIENCE, run into, come up against, face, be faced with, confront.
25B6; noun
an unexpected encounter : MEETING, chance meeting; archaic rencounter.
a violent encounter between police and demonstrators : BATTLE, fight, clash, confrontation, struggle, skirmish, engagement; informal run-in, set-to, dust-up, scrap.