hollow
/ˈhɒl.əʊ/ · hol·low
noun
- A small valley between mountains. He built himself a cabin in a hollow high up in the Rockies.
- A sunken area or unfilled space in something solid; a cavity, natural or artificial. the hollow of the hand or of a tree
- A sunken area. the hollow of a cave
verb
- To make a hole in something; to excavate. She hollowed out the center of the log to make a bowl.
Did you know? The word 'hollow' is also used in the phrase 'hollow of the hand', which refers to the concave space between the thumb and fingers, often used as a makeshift container.