archaic <古>
1a chance meeting with someone
偶遇, 邂逅。
1.1a battle, skirmish, or duel
遭遇战, 冲突; 决斗。
with obj.
meet by chance
偶遇, 邂逅：
I wonder who those fellows were we rencountered last night.
我说不准昨晚我们碰见的那几个人是谁。
词源
early 16th cent.: from French rencontre (noun), rencontrer 'meet face to face'.