encounter

(ĕn-kounˈtər)

1. A meeting, especially one that is unplanned, unexpected, or brief: a chance encounter in the park.
2. a. A hostile or adversarial confrontation; a contest: a tense naval encounter.
   b. An often violent meeting; a clash.

1. To meet, especially unexpectedly; come upon: encountered an old friend on the street.
2. To confront in battle or contention.
3. To come up against: encounter numerous obstacles.