From Longman Dictionary of Contemporary Englishretirement planreˈtirement ˌplan noun [countable] American EnglishBFBEC a system for saving money for when you stop work, done either through your employer or arranged by you SYN pension plan
Examples from the Corpus
retirement plan• Do retirement plan administrators get crazy?• They were among those who in 1981 took a $ 40,000 cash buyout to switch to a less-generous retirement plan.• Their restaurant is their retirement plan.