1) Contiguity 1) Hostile contest 
chance meeting; encounter; casual combat
• (n.) A meeting of two persons or bodies; a collision; especially, a meeting in opposition or contest; a combat, action, or engagement. • (v. t.) To meet unexpectedly; to encounter. • (v. i.) To meet unexpectedly; to encounter in a hostile manner; to come in collision; to skirmish. • (v. t.) To attack hand to hand. • (n.) ...
Ren·coun'ter transitive verb [ imperfect & past participle Rencountered (-t?rd); present participle & vb/ noun Rencountering .] [ French rencontrer ; prefix re- + Old French encontrer to encounter. See Encounter...
rencounter 1. A hostile meeting between adversaries. 2. A causal combat or action; a sudden contest or fight without premeditation, as between individuals or small parties. 3. A meeting of two people or bodies; a collision; especially, a meeting in opposition or contest; a combat, action, or engagement.