indorse (Verb) — Pick one person to give support and approval to in a particular role. ex. "I indorsed Kennedy in 1960"
indorse (Verb) — Give support or one's approval to. ex. "I'll indorse that motion"
indorse (Verb) — Guarantee as meeting a certain standard. ex. "indorsed grade AAA meat"
indorse (Verb) — Sign as evidence of legal transfer. ex. "indorse cheques"