also: コサージ · コーサージュ · コーサージ · コルサージュ
noun
corsage; floral accessory worn on clothing
A small bouquet of flowers or decorative arrangement pinned to a dress, often worn at formal events like weddings or proms.
from French
卒業式でドレスにコサージュを付けた。
I wore a corsage on my dress at the graduation ceremony.
母の日のプレゼントに手作りのコサージュを贈った。
I gave a handmade corsage as a Mother's Day gift.
noun
Archaic use referring to the fitted upper part of a woman's dress. In modern Japanese, this meaning is rarely encountered outside historical or fashion-history contexts.
19世紀のドレスでは、コルサージュがウエストを細く見せる役割を果たした。
In 19th-century dresses, the bodice served to make the waist look slender.
Variant with long vowel コー.
A boutonniere is a single flower or small spray worn on the lapel, typically by men, while a corsage is a larger arrangement worn by women on the dress or wrist.
From French 'corsage'. The variant spellings reflect different adaptations of the French pronunciation into Japanese.