Sequence - A repeating pattern which is transposed (moved up or down) a scale or round a cycle.
Imitation - A musical idea being passed around instruments or intrumental Families.
Pedal - A sustained note which can be either low in the bass, or high in the melody.
Ostinato - A repeating musical phrase, normally heard in the bass.
Pizzicato - Plucked strings. (Strings only)
Tremolando - Rapid bowling of notes. (Strings only)
Drum roll - Percussion.
Trill - Woodwind.
There will only ever be one answer: Syncopation.
Swing/Swung rhythm - heard in jazz.
Dotted rhythm - heard in marches.
Tempo may be anything between Largo and Presto and plain English words can be used if needed.
Shape - Arpeggio or Broken chord.
Legato - Smooth.
Staccato - Detained.
Can be anything from Pianissimo to Fortissimo. You can also use plain English but be precise.
Cresendo - Gradual increase in volume or intensity.
Decresedo - Gradual decrease in volume or intensity.
Dimineundo - Gradual decrease in volume.
Sforzando - Sudden loud.
In order of likeliness:
Perfect - Sounds finished.
Inperfect - Sounds like it should carry on / unfinished.
Plagal - Hymn tune.