adjective

 

top to bottom having a long distance from the top to the bottom

The water is a lot deeper than it seems.

 

front to back having a long distance from the front to the back

How deep are the shelves?

 

feeling A deep feeling is very strong.

deep affection/regret

 

sound A deep sound is low.

a deep voice

 

serious serious and difficult for most people to understand

a deep and meaningful conversation

 

colour A deep colour is strong and dark.

deep brown eyes

 

adverb

 

a long way into something from the top or outside

They travelled deep into the forest.