1.put up with something or somebody unpleasant;
I cannot bear his constant criticism
2.recognize and respect (rights and beliefs of others);
We must tolerate the religions of others
3.have a tolerance for a poison or strong drug or pathogen;
The patient does not tolerate the anti-inflammatory drugs we gave him
4.allow the presence of or allow (an activity) without opposing or prohibiting;
We don't allow dogs here