To suffer is to undergo or endure something that is very unpleasant.
(verb)
- When a person gets cancer, this is an example of a situation where a person suffers from cancer.
- When your grades become worse because you don't study, this is an example of a situation where your grades suffer.
- When you are willing to cope with your friend being mean to you, this is an example of a situation where you suffer the unkindness of a friend.