Toleration
Toleration is "the practice of deliberately allowing or permitting a thing of which one disapproves. One can meaningfully speak of tolerating—i.e., of allowing or permitting—only if one is in a position to disallow." It has also been defined as "to bear or endure" or "to nourish, sustain or preserve" or as "a fair, objective, and permissive attitude toward those whose opinions, beliefs, practices, racial or ethnic origins, etc., differ from one's own; freedom from bigotry" too. Toleration may signify "no more than forbearance and the permission given by the adherents of a dominant religion for other religions to exist, even though the latter are looked on with disapproval as inferior, mistaken, or harmful."
There is only one verb 'to tolerate' and one adjective 'tolerant,' but the two nouns 'tolerance' and 'toleration' have evolved slightly different meanings. Tolerance is an attitude of mind that implies non-judgmental acceptance of different lifestyles or beliefs, whereas toleration implies putting up with something that one disapproves of.