Refers to a life-sized model of a human body used for displaying clothes in stores, or a dummy used in training or art.
The mannequin in the shop window is wearing new clothes.
救急訓練でマネキンを使って心肺蘇生を練習した。
We practiced CPR using a mannequin during the first-aid training.
The clerk dressed the mannequin in the new dress.
They're displaying a mannequin in the shop window to introduce a new product.