"tolerance" in the noun sense
the power or capacity of an organism to tolerate unfavorable environmental conditions
2. permissiveness, tolerance
a disposition to allow freedom of choice and behavior
the act of tolerating something
willingness to recognize and respect the beliefs or practices of others
5. allowance, leeway, margin, tolerance
a permissible difference allowing some freedom to move within limits
Source: WordNet® (An amazing lexical database of English)
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