凿

Traditional form:

鑿

Pinyin (reading):

záo

Definitions:

• (bound form) chisel
• to bore a hole; to chisel; to dig
• (literary) certain; authentic; irrefutable
• also pr. (zuò)

Characters:

• 凿 - chisel; to bore, to pierce

Traditional characters:

• 鑿 - chisel; to bore, to pierce