hand

somebody's left/right hand  in somebody's hand  

the palm of your hand (=the inside surface of your hand)  

the back of your hand (=the outside surface of your hand)  

wave your hand  

clap your hands 

 hold hands with somebody 

shake somebody's hand also shake hands (with somebody) (=as a greeting) 

 take somebody by the hand =hold someone's hand in order to take them somewhere 

join hands =take hold of someone's hand, for example in a dance  

clasp your hands =hold them together tightly 

fold your hands =put them together and rest them on something 

raise your hand also put your hand up British English lift your hand in the air, especially to show that you want to answer or ask a question  

on (your) hands and knees =in a crawling position

with your bare hands =without using a tool, weapon, machine etc