Recess
Part of speech: noun
Definition: A break, pause or vacation. An inset, hole, space or opening. A time of play, usually, on a playground.
Part of speech: verb
Definition: To inset into something, or to recede. To take or declare a break.
Part of speech: adjective
Definition: Remote, distant (in time or place).
Example sentence: Right now many schools have no recess. Most schools have no PE.
Niche
Part of speech: noun
Definition: A cavity, hollow, or recess, generally within the thickness of a wall, for a statue, bust, or other erect ornament. Hence, any similar position, literal or figurative.A function within an ecological system to which an organism is especially suited.Any position of opportunity for which one is well-suited, such as a particular market in business.An arrow woven into a muslim prayer rug pointing in the direction of Mecca.
Example sentence: I think there is a niche for every market.