2.NounUsed other than figuratively or idiomatically: see big, hand: for example, a strong round of applause, a great deal of assistance, or a large body part."What a great job these kids have done today! Let's give them a big hand, everybody! [hearty applause]; Several people gave me a hand with getting this work done on time. In particular, Sean gave me a really big hand with the number-crunching.; My grandfather had very big hands. They were so big that some of his classmates when he was a child even teased him about it — that is, the ones who dared! He would reply by asking whether they were looking for a slap or a punch!"