nock UK /nɒk/US /nɑk/noun 3verb 2exclamation 1forms 3 noun3 •Either of the two grooves in a bow that hold the bowstring.Meanwhile there had been bustle and preparation in all parts of the great vessel. The archers stood in groups about the decks, new-stringing their bows, and testing that they were firm at the nocks. — 1891 •The notch at the rear of an arrow that fits on the bowstring.He took his arrow by the nock. — 1611 •The upper fore corner of a boom sail or trysail. verb2 •To fit (an arrow) against the bowstring of a bow or crossbow.Then taking up his own good stout bow and nocking an arrow with care, he shot with his very greatest skill. — 1883 •To cut a nock in (usually in an arrow's base or the tips of a bow).It is a Scotch bow, I see, for the upper nock is without and the lower within. By the black rood! it is a good piece of yew, well nocked, well strung, well waxed, and very joyful to the feel. — 1891 exclamation1 •Fit the arrow to your bowstring. formsnocked · nocking · nocks