Both 罷 (ひ) and 免 (めん) are standard on'yomi. 罷 means to stop or dismiss, and 免 means to dismiss. Wrong readings like ばめん or しめん mispronounce 罷, while つとめる is a kun'yomi for a different kanji. It means the formal dismissal or removal of someone from their position or office, typically due to misconduct.

罷 (ひ) も 免 (めん) も標準的な音読み。職務から解任することを意味します。主に公職にある者をその職から退かせる際に使われます。