窍门

Traditional form:

竅門

Pinyin (reading):

qiàomén

Definitions:

• a trick
• an ingenious method
• know-how
• the knack (of doing sth)

Characters:

• 窍 - hole, opening, aperture
• 门 - gate, door, entrance, opening

Traditional characters:

• 竅 - hole, opening, aperture
• 門 - gate, door, entrance, opening