tolerance

(noun) the power or capacity of an organism to tolerate unfavorable environmental conditions.

(noun) a disposition to allow freedom of choice and behavior. Synonyms: permissiveness.

(noun) the act of tolerating something.

(noun) willingness to recognize and respect the beliefs or practices of others.

(noun) a permissible difference; allowing some freedom to move within limits. Synonyms: allowance, leeway, margin.