limit

(noun): A restriction; a bound beyond which one may not go.
(noun): A value to which a sequence converges. Equivalently, the common value of the upper limit and the lower limit of a sequence: if the upper and lower limits are different, then the sequence has no limit (i.e., does not converge).
(noun): Any of several abstractions of this concept of limit.
(noun): The cone of a diagram through which any other cone of that same diagram can factor uniquely.
(noun): Fixed limit.
(noun): The final, utmost, or furthest point; the border or edge.
(noun): The space or thing defined by limits.
(noun): That which terminates a period of time; hence, the period itself; the full time or extent.
(noun): A restriction; a check or curb; a hindrance.
(noun): A determining feature; a distinguishing characteristic.
(noun): The first group of riders to depart in a handicap race.
(noun): (as "the limit") A person who is exasperating, intolerable, astounding, etc.
(adjective): Being a fixed limit game.