Select the option that can be used as a one-word substitute for the given group of words/phrase.

Fail to notice; ignore; condone (an offence etc.)

Overlook

The correct answer is overlook.

• Overlong means too long.
• Overlie means to lie on top of something.
• Overly means to an excessive degree.

The word overlook comes from the Old English word "overlocian," meaning "to look over." To overlook something means to fail to notice it, or to ignore it. It can also mean to condone something, or to accept it without taking action.