The term 'palm of hand' refers to the area of the hand located between the wrist and the fingers. The two crossword solutions for this term are 'volar' (5 letters) and 'thenar' (6 letters). Volar is a term used to describe the underside of the hand, while thenar is a term used to describe the fleshy area at the base of the thumb. Both terms refer to the same area of the hand, the palm of hand.