boutonniere /ˌbuːtn̩ˈiɚ/ Brit /buːˌtɒniˈɛə/ noun plural boutonnieres
/ˌbuːtn̩ˈiɚ/ Brit /buːˌtɒniˈɛə/
noun
plural boutonnieres
Learner's definition of BOUTONNIERE
[count] US
: a flower or small group of flowers that men sometimes wear on their jackets on special occasions (such as weddings)（男士礼服上的）花束，胸花 — called also (British) buttonhole