A Recess

1. (countable or uncountable) A break, pause or vacation.

2. An inset, hole, space or opening.
3. (US, Australia, Canada) A time of play during the school day, usually on a playground; (Britain) break, playtime.
4. A decree of the imperial diet of the old German empire.
5. (archaic) A withdrawing or retiring; a moving back; retreat.
6. (archaic) The state of being withdrawn; seclusion; privacy.
7. (archaic) A place of retirement, retreat, secrecy, or seclusion.
8. A secret or abstruse part.
9. (botany, zoology) A sinus.

(a break): break, day off, pause, vacation; hiatus, moratorium