Synonyms for Resign (same or very similar meaning)
WordNet sense 1 (give up or retire from a position):
quit, leave office, step downWordNet sense 2 (leave (a job, post, or position) voluntarily):
renounce, vacate, give upWordNet sense 3 (part with a possession or right):
free, release, relinquish, releaseWordNet sense 4 (accept as inevitable):
reconcile, submitFrom the ODE community, based on WordNetadd/edit