The AI-powered English dictionary
plural boutonnieres
A small flower or bunch of flowers worn in a buttonhole or pinned to the lapel of a jacket. quotations examples
The rare white "Heliotrope" whose flower can can be worn as a boutanniere [sic] and whose scent can be discreetly sprinkled on hankerchieves.
1991 August 31, Rudy Grillo, “Color Me Gay”, in Gay Community News, volume 19, number 7, page 11