General tolerance:
* Acceptance: This implies a willingness to acknowledge and allow something, even if you don't necessarily agree with it.
* Forbearance: This suggests patience and restraint in the face of something unpleasant or annoying.
* Endurance: This emphasizes the ability to withstand something difficult or challenging.
* Sufferance: This has a more passive connotation, suggesting that you are simply allowing something to happen without active resistance.
Specific types of tolerance:
* Threshold: This refers to the limit of something that can be tolerated.
* Immunization: This refers to the ability to withstand a particular disease or condition.
* Resistance: This refers to the ability to withstand the effects of something harmful.
The best noun to use will depend on the specific situation and what you want to emphasize.