• 免まぬがれる — to escape; to be spared; to avoid something unpleasant
• 免除めんじょ — exemption; being let off a duty, fee, or rule
• 免税めんぜい — tax exemption; duty-free
• 免職めんしょく — dismissal from office; being removed from a post
• 赦免しゃめん — pardon; remission of punishment
• 罷免ひめん — dismissal; removal from office
• 免許めんきょ — license; official qualification or permit

免 is an old pictograph often explained as a person turning the head and moving away, built on the “leg” radical 儿. The basic idea is to get away from something — to escape or be spared. From there it developed words like 免まぬがれる for “to avoid,” 免除めんじょ for “exemption,” and 免許めんきょ, a license that says you are officially freed from the usual restriction and allowed to do something.