Nouns

(n)limit, bound, boundarythe greatest possible degree of something“what he did was beyond the bounds of acceptable behavior”, “to the limit of his ability”
(n)terminus ad quem, terminal point, limitfinal or latest limiting point
(n)limitas far as something can go
(n)limit, demarcation, demarcation linethe boundary of a specific area
(n)limit, limit point, point of accumulationthe mathematical value toward which a function goes as the independent variable approaches infinity
(n)limit, limitationthe greatest amount of something that is possible or allowed“there are limits on the amount you can bet”, “it is growing rapidly with no limitation in sight”

Verbs

(v)restrict, trammel, limit, bound, confine, throttleplace limits on (extent or amount or access)“restrict the use of this parking lot”, “limit the time you can spend with your friends”
(v)limit, circumscribe, confine torestrict or confine within limits“I limit you to two visits to the pub a day”, “please confine your questions to the topic”, “our actions are circumscribed by our biology, personality, and by the social and cultural context into which we are born”
(v)specify, set, determine, define, fix, limitdecide upon or fix definitely“fix the variables”, “specify the parameters”