A small hollow mark in the surface of something caused by pressure or by being hit. (Cambridge Dictionary)
To make a small hollow mark in the surface of something. (Cambridge Dictionary)
If you dent someone’s confidence or pride, you make them feel less confident or proud. (Cambridge Dictionary)
If you dent the surface of something, you make a hollow area in it by hitting or pressing it. (Collins Dictionary)
A depression or hollow made by a blow or by pressure. (Merriam – Webster)
A slight hollow in a hard even surface made by a blow or pressure. (Oxford Dictionaries)
Example
Intermediate+ Word of the Day: dent.

https://daily.wordreference.com/2017/09/20/intermediate-word-of-the-day-dent/