A tempo - Return to the original tempo after some deviation
Accelerando - Becoming gradually faster
Allargando - Slowing of tempo, usually with increasing volume; typically toward the end of a piece
Allegro con spirito - Fast tempo with spirit
Andante - Rather slow, at a moderate walking speed
Largo - Very slow and broad
Presto - Very fast; faster than allegro
Rallentando - Gradually slowing down
Rubato - Flexible tempo, accelerating and slowing down expressively