Noun
skill [pl. skills]
ability [pl. abilities]
knack [pl. knacks]
tact [pl. tacts]
craft [sing. a craft] , {iness}
proficiency [pl. proficiencies]
facility [pl. facilities]
science [pl. sciences]
forte [pl. fortes]
acuity [pl. acuities]
woodcraft [pl. woodcrafts]
...