n.
1.
Fitness, suitableness, appropriateness, appositeness, pertinence, pertinency, point, pointedness, felicity, felicitousness, adaptation, applicability.
2.
Turn, tendency, inclination. See aptitude , 1.
3.
Quickness, readiness, expertness, skill, facility, knack, adroitness, tact, address, ability, happy faculty.