plug

1 to close up so that no empty spaces remain plugged the hole in the wall with putty Synonyms block, bung, dam, pack, fill, stop, stuffRelated Words choke, clog, close (off), clot, congest, jam, obstruct, occlude; caulk, chink, seal; repack, restuffNear Antonyms excavate, hollow (out), scoop (out), shovel

2 to devote serious and sustained effort plugged away at solving the math problem Synonyms bang away, beaver (away), dig (away), drudge, endeavor, fag, grub, hump, hustle, moil, peg (away), plod, plow, labor, slave, slog, strain, strive, struggle, sweat, toil, travail, tug, workRelated Words apply (oneself), buckle (down), dig in, hammer (away), knuckle down, pitch in; attack, drive; essay, try; exercise, exert, overexert, overwork; eke out, grind (out), put out, scrabble, scratch; trudge, wadeNear Antonyms break, ease (up), let up, slacken; bum, chill, dally, dillydally, footle, goldbrick, goof (off), hack (around), hang (around or out), idle, laze, loaf, lounge, shirk, slack (off), veg out; bask, loll, relax, repose, rest, unwind; dabble, doodle, fool around, fribble, goof (around), hang, hang about [British], mess around, monkey (around), play, potter (around), putter (around), trifle

3 to provide publicity for the actress is giving lots of interviews to plug her latest movie Synonyms ballyhoo, hype, pitch, publicize, promote, talk up, toutRelated Words advertise, bark, merchandise (also merchandize), sell; push; acclaim, hail, laud, praise; endorse (also indorse), plump (for), plunk (for) or plonk (for); recommend, review; announce, broadcast, publish

4 to strike with a missile from a gun the drug lord plugged the stool pigeon as a lesson for any others who were tempted to talk Synonyms drill, gun, shoot, popRelated Words blow away, bring down, drop, pick off, shoot down; blaze, pepper, potshot, snipe (at); blast (at), fire (at); pistol, shotgun; machine-gun, tommy-gun; croak [slang], destroy, dispatch, do in, fell, ice [slang], kill, slay; annihilate, blot out, butcher, decimate, massacre, slaughter, wipe out