highlight

An area or a spot in a drawing, painting, or photograph that is strongly illuminated.

An especially significant or interesting detail or event or period of time.

"Meeting my future wife was the highlight of my trip to Spain."

A strand or spot of hair dyed a different color than the rest.

To make prominent; emphasize.

To be a highlight of.

To mark (important passages of text), e.g. with a fluorescent marker pen or in a wordprocessor, as a means of memory retention or for later reference.