infinity; infinitude; eternity; infinite; limitless
(school) period; period or division of time; time limit
power; authority; jurisdiction
maximum; to the maximum degree; to the full; at a maximum
restriction; restraint; limitation; limit
minimum; at the very least
utmost limits; extremity; limit
minimum; lowest; minimal; at a minimum
term; period; time frame; time limit; deadline; cutoff (date)
closing time; lockup; curfew
nth period (e.g. nth class in school day)
first period (e.g. first class in school day)
restriction; localization
limit; localize; localise
southern limit (esp. of the distribution of a plant or animal)
western limit (esp. of the distribution of a plant or animal)
entail (in Western common law); fee tail
eastern limit (esp. of the distribution of a plant or animal)
water supply restrictions
contract month; delivery month (of a futures contract)
due date for payment of tax; tax deadline
restriction; restraint; limitation; limit
temporary legislation; legislation of specified duration