/nak/ , n.
1. a special skill, talent, or aptitude: He had a knack for saying the right thing.
2. a clever or adroit way of doing something.
3. a trick or ruse.
4. a sharp, cracking sound.
5. Archaic. a knickknack; trinket.
[ 1325-75; ME: trick; perh. same word as knak sharp-sounding blow, rap, cracking noise (imit.) ]
Syn. 1. aptness, facility, dexterity.