A strength or talent.
He writes respectably, but poetry is not his forte.
The strong part of a sword blade, close to the hilt.
A passage in music to be played loudly; a loud section of music.
Loud. Used as a dynamic directive in sheet music in its abbreviated form, "f.", to indicate raising the volume of the music. (Abbreviated in musical notation with an f, the Unicode character 1D191.)
Loudly.
The musicians played the passage forte.