Definitions

1. noun

a small floral decoration worn by a man on his lapel, typically as part of a wedding attire

“He wore a beautiful boutonniere to the wedding reception.”

2. noun

a similar decoration worn on a jacket or coat

“The actor added a boutonniere to his tuxedo for the awards show.”

3. verb

to decorate with a boutonniere

“The florist boutonnieres the groom’s jacket for the wedding ceremony.”