► 名詞
胸 [(2)むね] meaning: breast rank: 1
☆ 彼女は胸が無い ⇨ She has no breasts, is flat-chested
☆ 私は胸に鋭い痛みを感じた ⇨ I felt sharp pain in the chest
おっぱい [(1)おっぱい] [coll] [casual] meaning: breast rank: 2
☆ 彼女はおっぱいが大きい ⇨ She has big boobs (☛ Casual but not vulgar. Used by both male and female. Female breast only)
巨乳 [きょにゅう] [coll] [vulgar] meaning: breast rank: 4
☆ 巨乳女優 ⇨ An actress with giant boobs
乳房 [(1)ちぶさ] [tech] meaning: breast rank: 4
☆ 女性は思春期に乳房が発達する ⇨ Breasts develop for women during adolescence (☛ Usually female breast)
爆乳 [ばくにゅう] [coll] [vulgar] meaning: breast rank: 4
☆ 爆乳女優 ⇨ An actress with giant boobs