Draining Point of a Bathtub
Puzzle 9 of Nail Salon Easy Pack
Question is: Draining Point of a Bathtub
and the answer is: PLUGHOLE
Word Meaning:
PLUGHOLE — (chiefly Australia, New Zealand, British) The hole at the bottom of a bath, sink or tub, which can be blocked using a plug; a drain (US)
Definitions from Wiktionary.