Knack

Noun

 * 1) A readiness in performance; aptness at doing something; skill; facility; dexterity.
 * 2) A petty contrivance; a toy; a plaything; a knickknack.
 * 3) Something performed, or to be done, requiring aptness and dexterity; a trick; a device.

Verb

 * 1) To crack; to make a sharp, abrupt noise to chink.
 * 2) To speak affectedly.

Adjectives for Knack
mechanical; instinctive.

Thesaurus
ability, adroitness, aptitude, aptness, art, bauble, bent, bibelot, bric-a-brac, capacity, command, dexterity, expertise, expertism, expertness, facility, feel, flair, fribble, gaud, genius, gewgaw, gift, gimcrack, hang, head, intuition, kickshaw, knickknack, know-how, mastership, mastery, nose, proficiency, quickness, readiness, set, skill, swing, talent, touch, toy, trick, trinket, turn, way, whim-wham