The term CLASH WITH can be defined by the following crossword solutions: FIGHT (5 letters), SPAR (4 letters), DISAGREE (8 letters), ENCOUNTER (9 letters), WAR (3 letters), JAR (3 letters), and CONFLICT (8 letters). To FIGHT is to engage in physical combat, while to SPAR is to engage in a practice FIGHT. Disagreeing is to have a difference of opinion, while an ENCOUNTER is a meeting or confrontation. WAR is a large-scale armed CONFLICT between two or more nations, while a JAR is a container with a wide mouth and a firm lid. CONFLICT is a clash between opposing ideas, interests, or individuals.