IPA: /rɛnˈkɒntə/
KK: /rɛnˈkɔːntər/
A meeting or encounter, often casual or unplanned, between people or groups.
I had a pleasant rencontre with an old friend at the café.
Rencontre is derived from the Old French "rencontrer" (meaning to meet or encounter), which itself comes from the Latin "re-" (meaning again) and "con-" (meaning together) combined with "tra" (meaning to turn). The word describes the act of meeting again or coming together at a point.
Think of 'meeting again' — 're-' means again, 'con-' means together, and 'tra' relates to turning towards each other.