with effort1 with great effort; with difficultyto work hardYou must try harder.She tried her hardest not to show how disappointed she was.Don't hit it so hard!He was still breathing hard after his run.Our victory was hard won (= won with great difficulty).
with force2 with great force(figurative)Small businesses have been hit hard/ hard hit by the recession.
carefully3 very carefully and thoroughlyto think hardWe thought long and hard before deciding to move into a new house.
a lot4 heavily; a lot or for a long timeIt was raining hard when we set off.
left/right5 at a sharp angle to the left/rightMake a hard right at the next intersection.
be hard pressed/pushed/put to do something
to find it very difficult to do somethingHe was hard put to explain her disappearance.be hard pressed/put to dobe hard pushed/put to do
be hard up for something
to have too few or too little of somethingWe're hard up for ideas. see also hard upbe hard up for
hard on something
very soon afterHis death followed hard on hers.hard on
old habits, traditions, etc. die hard
used to say that things change very slowlyold habits, traditions, etc. die hard
(close/hard/hot) on someone's/something's heels
very close behind someone or something; very soon after somethingNews of rising unemployment followed hard on the heels of falling export figures.He ran ahead, with the others hot on his heelson heelsclose/hot on heelson heelshard/hot on heels
Usage note: hard hardlyThe adverb from the adjective hard is hard: I have to work hard today. She has thought very hard about her future plans. It was raining hard outside.Hardly is an adverb meaning “almost not”: I hardly ever go to concerts. I can hardly wait for my birthday. It cannot be used instead of hard:I’ve been working hardly today. She has thought very hardly about her future plans. It was raining hardly outside.⇨ note at hardly
take something hard
to be very upset by somethingHe took his wife's death very hard.take hard