vacate, resign, renounce, give up -- (leave (a job, post, or position) voluntarily; "She vacated the position when she got pregnant"; "The chairman resigned when he was found to have misappropriated funds")
leave office, quit, step down, resign -- (give up or retire from a position; "The Secretary of the Navy will leave office next month"; "The chairman resigned over the financial scandal")
release, relinquish, resign, free, give up -- (part with a possession or right; "I am relinquishing my bedroom to the long-term house guest"; "resign a claim to the throne")
resign, reconcile, submit -- (accept as inevitable; "He resigned himself to his fate")