Meaning of bite the bullet In English

• 0 to force yourself to do something unpleasant or difficult, or to be brave in a difficult situation:

  • I hate going to the dentist, but I'll just have to bite the bullet.

• 1 to force yourself to perform an unpleasant or difficult action or to be brave in a difficult situation:

  • I decided I had to bite the bullet and take a couple of math classes even though I knew they were hard.