Definitions
1.nounA meeting, especially one that is unplanned or unexpected."Their encounter was a matter of chance."
2.nounA hostile, often violent meeting; a confrontation, skirmish, or clash, as between combatants.
3.nounA match between two opposing sides.
4.verbTo meet (someone) or find (something), especially unexpectedly.
5.verbTo confront (someone or something) face to face.
6.verbTo engage in conflict, as with an enemy."Three armies encountered at Waterloo."