Answer:
In musical terminology, tempo is the speed or pace of a given piece. In classical music, tempo is typically indicated with an instruction at the start of a piece (often using conventional Italian terms) and is usually measured in beats per minute (or bpm). In modern classical compositions, a "metronome mark" in beats per minute.
A tempo marking lets you know the speed (called tempo) at which the composer wants a piece of music performed. For example, Allegro means fast and is a tempo between 120 bpm and 168 bpm. The composer could write Allegro or 120bpm.
