returnrule
nounUK /rɪˈtɜːn ruːl/
US /rɪˈtɝːn ruːl/
A return rule is a rule about giving something back.
The library has a return rule that says you must bring books back in two weeks.
OTHER MEANINGS
2. A rule in a game about sending the ball back to the other side.
In tennis, the return rule says you must hit the ball back over the net.
3. A rule about when a bought item can be taken back to the store.
The store's return rule lets you bring back shoes within thirty days.
4. A rule in a computer program about sending a value back.
The function follows a return rule to send an answer back to the program.