General words:
* Foreboding: A feeling that something bad is going to happen.
* Forefather: An ancestor.
* Forehead: The part of the face above the eyebrows.
* Foreman: A supervisor of workers.
* Foreword: An introductory part of a book.
* Foremost: The most important or prominent.
* Forename: A person's first name.
* Foresight: The ability to see or anticipate what will happen in the future.
* Forethought: Careful consideration of the future.
* Forewarn: To warn in advance.
Words related to specific areas:
* Forearm: The part of the arm between the elbow and the wrist.
* Forecastle: The forward part of a ship.
* Foreclose: To take possession of a property because of nonpayment of debt.
* Foregather: To come together, especially for a particular purpose.
* Forehand: A stroke in tennis or other sports in which the racket is held on the same side as the dominant hand.
* Foreknowledge: Knowledge of something before it happens.
* Foreleg: The front leg of an animal.
* Foreman: The supervisor of a jury.
* Foreplay: Sexual activity that precedes intercourse.
* Forestall: To prevent something from happening by taking action in advance.
* Fortnight: A period of two weeks.
This is not an exhaustive list, but it provides a good starting point for understanding the various words that begin with the prefix "fore-".