attacked; attacking; attacks
1
: to set upon or work against forcefully
attack an enemy fortification
2
: to assail with unfriendly or bitter words
a politician verbally attacked by critics
3
: to begin to affect or to act on injuriously
plants attacked by aphids
4
a
: to set to work on
attack a problem
b
: to begin to eat (food) eagerly
At the table he attacked his meal with such singleminded ferocity as to be, as Boswell put it, disgusting to those whose sensations were delicate.—
Donald R. DeGlopper
5
chess
: to threaten (a piece) with immediate capture
: to make an attack
They were unprepared when the enemy attacked.
attacker
noun
plural attackers
plural attackers
1
: one that makes an attack against another : one that attacks someone or something
There were narrow passageways and rooms everywhere, and facing the outside were gunports, from which the defenders of the castle could repel attackers.—
Sidney Sheldon, The Sands of Time, 1988
He's just been mugged in Central Park and she's frightened off his attackers with her tennis racquet.—
Ross Wetzsteon, Saturday Review, August 1981
A harassed cat may be undecided about whether to run from its attacker or stand and fight.—
Suzanne Hetts, Cat Fancy, January 1994
The fact that Agnew lashed back at his attackers in the press—and Mr. Nixon has not—did not go unnoticed in the White House.—
Roland Evans and Robert Novak, The Day, (New London, Connecticut), 10 Aug. 1973
Even if you've set a password, an enterprising attacker can just attack it with a cracking program.—
Bill Machrone, PC Magazine, 14 Dec. 1999
2
sports
: a player in a team sport (such as soccer or lacrosse) assigned to an offensive position
… "dead-ball situations," when the ball is kicked from a fixed mark, and attackers and defenders dispose themselves to deal with it accordingly.—
Pete Davies, Twenty-Two Foreigners in Funny Shorts, 1994
Love words? Need even more definitions?
Merriam-Webster unabridged



