Wiktionary
n. A peg, driven into the ground, to hold a rope that supports a tent.
WordNet
n. a peg driven into the ground to hold a rope supporting a tent
Wikipedia
A tent peg (or tent stake) is a spike, usually with a hook or hole on the top end, typically made from wood, metal, plastic, or composite material, pushed or driven into the ground for holding a tent to the ground, either directly by attaching to the tent's material, or by connecting to ropes attached to the tent. Traditionally, a tent peg is improvised from a section of a small tree branch, if possible with a small side branch cut off to leave a hook, driven into the ground narrower end first.
Usage examples of "tent peg".
She began walking slowly backward, drawing the men as easily as a tent peg.
Coll watched him drop lightly to the ground and warily approach the tent peg.
I walked first to the coat closet and pulled the door open, but no one was standing there with a tent peg in his hand.
When they reached their destination, the child struggled with a tent peg so that Sean would not have to crawl again.