Definition of "fort" in English

noun

1. A fortified defensive structure stationed with troops.

2. Any permanent army post.

3. (historical) An outlying trading-station, as in British North America.

4. A structure improvised from furniture, bedding, etc., for playing games.

   • The kids built a fort out of chairs and pillows.

verb

1. To create a fort, fortifications, a strong point, or a redoubt.