n. 25B6; verb
he ducked behind the wall : BOB DOWN, bend (down), stoop (down), crouch (down), squat (down), hunch down, hunker down; cower, cringe.
she was ducked in the river : DIP, dunk, plunge, immerse, submerge, lower, sink.
(informal) they cannot duck the issue forever : SHIRK, dodge, evade, avoid, elude, escape, back out of, shun, eschew, sidestep, bypass, circumvent; informal cop out of, get out of, wriggle out of, funk; Austral./NZ informal duck-shove.