Suffer
Part of speech: verb
Definition: To undergo hardship. To feel pain. To have a disease or condition. To become worse. To endure, undergo. To allow.
Example sentence: Life is not always easy to live, but the opportunity to do so is a blessing beyond comprehension. In the process of living, we will face struggles, many of which will cause us to suffer and to experience pain.
Tolerate
Part of speech: verb
Definition: To allow (something that one dislikes or disagrees with) to exist or occur without interference.
Example sentence: If you want to be a real human being - a real woman, a real man - you cannot tolerate things which put you to indignation, to outrage. You must stand up. I always say to people, 'Look around; look at what makes you unhappy, what makes you furious, and then engage yourself in some action.'