expertise, readiness, knowledge, knack, craft, aptitude, adeptness, adroitness, skill, ability, proficiency, command, art, cleverness, technique, know-how, mastery, dexterity.
She was a sensible girl who realized that the typewriter paid better than the piano, and accordingly turned the expertness
of her white fingers to the former instrument.
As a child Rizal had been trained to rapid work, an expertness
kept up by practice, and the copying of his own countenance from a convenient near- by mirror was but a moment's task.
He flouted the idea of Negro expertness
in handling weapons of modern warfare.