n. A rounded projection; a protuberance; a bunch; a knop.n. A fleshy protuberance; a pimple.n. A rounded projection forming the termination of something, as of a staff: specifically, the more or less ballshaped part of the handle for a door, drawer, or the like.n. A prominent isolated hill; a hill generally: same as mound in Wisconsin and Iowa, and butte in the Cordilleran region. [Southern and western U. S.]n. In entomology, a dilated outer portion of a part. Specifically — An expanded apical portion of an insect's antenna, as in a butterfly. In Diptera, the capitulum or outer portion of the halter or balancer. The distended outer portion of a fly's proboscis.n. In a cannon, the spherical part at the rear end of the piece, forming the opposite extremity to the muzzle: it is a part of the cascabel. In ships' guns a breeching-loop takes the place of the knob.n. In architecture, specifically, a bunch of leaves, flowers, or similar ornaments, as the boss at the intersection of ribs, the end of a label or other molding, or a bunch of foliage in a capital. In this sense also called knop and knot. See cut under boss.n. Same as knobstick.n. The rudiment of a deer's antler. Compare knobber.To grow into knobs; bunch.To produce a knob or knobs upon.To free from knobs, as stone in the quarry, in rough-dressing it.n. A small flock, less than 30, of ducks: an English sporting-term.