hard

See:

a hard nut a hard nut to crack a hard row to hoe a hard time a hard-on a tough nut bad times be a hard act to follow be as hard as nails be hard pressed be hard put be hard up between a rock and a hard place bigger they are, the harder they fall cold, hard cash didn't care too hard die hard do the hard way drive a hard bargain fall on hard times feel hard done-by first hundred years are the hardest first step is always the hardest give a hard time Good men are scarce

hard as a rock hard as nails hard at hard cash Hard cheddar! Hard cheese! hard feelings hard going Hard lines hard nut to crack hard of hearing hard on hard on heels hard on the heels of hard put hard put to hard sledding hard to believe hard to swallow hard to take hard up Hard words break no bones hard-boiled hard-nosed harder than the back of God's head

have a hard time hit hard learn ( the hard way learn the hard way make hard work of no hard and fast rules no hard feelings Old habits die hard on heels play hard to get put in a hard day at work put the make on school of hard knocks take a hard line take a long hard look at take a long, hard look at The bigger they are, the harder they fall the hard sell the hard stuff the school of hard knocks think long and hard tough act to follow tough as nails tough row to hoe