Definition of “peg” - Learner’s Dictionary

peg

noun [ C ] us uk /peɡ/
ON WALL

an object on a wall or door that you hang things on

ON ROPE also clothes peg UK

a short piece of wood, plastic, etc that is used to hold clothes on a rope while they dry

STICK

a stick made of metal or wood that has a sharp end and which is used to fix something somewhere:

a tent peg

(Definition of “peg noun” from the Cambridge Learner's Dictionary © Cambridge University Press)