This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Able to withstand great strain without tearing or breaking; strong and resilient: a tough all-weather fabric.

adj. Hard to cut or chew: tough meat.

adj. Physically hardy; rugged: tough mountaineers; a tough cop.

adj. Severe; harsh: a tough winter.

adj. Aggressive; pugnacious.

adj. Inclined to violent or disruptive behavior; rowdy or rough: a tough street group.

adj. Demanding or troubling; difficult: skipping the toughest questions.

adj. Strong-minded; resolute: a tough negotiator.

adj. Slang Unfortunate; too bad: a tough break.

adj. Slang Fine; great.

n. A violent or rowdy person; a hoodlum or thug.

idiom. tough it out Slang To get through despite hardship; endure: "It helps if one was raised to tough it out” ( Gail Sheehy).

adj. Strong and resilient; sturdy.

adj. Difficult to cut or chew.

adj. Rugged or physically hardy.

adj. Stubborn.

adj. Harsh or severe.

adj. Rowdy or rough.

adj. Difficult or demanding.

adj. Undergoing plastic deformation before breaking.

interjection. Used to indicate lack of sympathy

n. A person who obtains things by force; a thug or bully.

v. To endure.

v. To toughen.

adj. Having the quality of flexibility without brittleness; yielding to force without breaking; capable of resisting great strain.

adj. Not easily broken; able to endure hardship; firm; strong; -- of objects and people.

adj. Not easily separated; viscous; clammy; tenacious.

adj. Stiff; rigid; not flexible; stubborn.

adj. Severe; violent.

adj. Difficult to do, perform, or accomplish.

adj. Prone to aggressive or violent behavior; rowdyish; -- of people, or groups.

n. A person who is tough{7}; a ruffian; a thug.

Having the property of flexibility without brittleness; yielding to a bending force without breaking; also, hard to cut or sever, as with a cutting-instrument: as, tough meat.

Firm; strong; able to endure hardship, hard work, or ill usage; hardy; not easily broken or impaired.

Not easily separated; tenacious; stiff; ropy; viscous: as, a tough clay; tough phlegm.

Not easily influenced; unyielding; stubborn; hardened; incorrigible.

Hard to manage or accomplish; difficult; trying; requiring great or continued effort.

Severe; violent: as, a tough rebuke or tirade; a tough storm.

n. A rough; a bully; an incorrigibly vicious fellow; a bad character.

adj. making great mental demands; hard to comprehend or solve or believe

n. an aggressive and violent young criminal

n. someone who learned to fight in the streets rather than being formally trained in the sport of boxing

adj. unfortunate or hard to bear

adj. substantially made or constructed

adj. physically toughened

n. a cruel and brutal fellow

adj. very difficult; severely testing stamina or resolution

adj. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad')

adj. violent and lawless

adj. not given to gentleness or sentimentality

adj. resistant to cutting or chewing

"QUOTATION: He’s tough, ma’am, —tough is J. B.; tough and devilish sly."

difficult    hard    bad    rugged    enured    thickened    weather-beaten    inured    calloused    hardened   

toughed   

scrapper    combatant    battler    belligerent    fighter   

tough pitch    mild and tough    to make it tough   

tough call    toughly    hang tough    tough out    tough it out   

firm    strong    viscous    clammy    tenacious    stiff    rigid    stubborn    severe    violent   

Slough    bluff    bruff    buff    cuff    duff    enough    fluff    gruff    guff   

rough    nice    difficult    smart    ugly