纽扣

Traditional form:

紐扣

Pinyin (reading):

niǔkòu

Definitions:

• button

Characters:

• 纽 - knot; button, handle; tie
• 扣 - to detain; to knock, to tap; button

Traditional characters:

• 紐 - knot; button, handle; tie
• 扣 - to detain; to knock, to tap; button