What does the word felt mean?

Usage examples for felt

  1. And as he said it, he felt in his heart he would never know. – Command by William McFee
  2. She felt that he was all that Phil was, and more. – When A Man's A Man by Harold Bell Wright
  3. I felt sure he would tell us to go away at once or he would call the police. – Captain Macklin by Richard Harding Davis