a tempo
in time (resume the original speed)
accelerando (or accel.)
gradually getting quicker
adagio
slow
allegretto
fairly quick
allegro
quick
andante
at a medium speed
cantabile
in a singing style
crescendo (or cresc.)
gradually getting louder
da capo (or D.C.)
repeat from the beginning
decrescendo (or decresc.)
gradually getting quieter
diminuendo (or dim.)
gradually getting quieter
dolce
sweet
f (forte)
loud
ff (fortissimo)
very loud
fine, al fine
the end
legato
smoothly
mf (mezzo forte)
moderately loud
moderato
at a moderate speed
mp (mezzo piano)
moderately quiet
p (piano)
quiet
pp (pianissimo)
very quiet
rallentando (or rall.)
gradually getting slower
ritardando (or ritard. or rit.)
gradually getting slower
staccato (or stacc.)
detached