GMAT Vocabulary Flash Cards @ englishpdf.com and englishteststore.com File 138 contender (n) One who exerts oneself in opposition or rivalry contentious (adj) quarrelsome contest (v) to attempt to disprove or invalidate contiguity (n) Proximity contiguous (adj) Touching or joining at the edge or boundary continence (n) Self-restraint with respect to desires, appetites, and passion contingency (n) Possibility of happening contingent (adj) Not predictable