Longman Dictionary of Contemporary English - highlight

~1 v 1 to make a problem or subject easy to notice so that people pay attention to it  (a test to highlight students' strengths and weaknesses) 2 to mark written words with a special coloured pen, or in a different colour on a computer, so that you can see them easily 3 to make some parts of your hair a lighter colour than the rest - highlighting n ~2 n 1 the most important, interesting, or enjoyable part of something such as a holiday, performance, or sports competition  (That weekend in Venice was definitely the highlight of our trip.) 2 highlights areas of hair that have been made a lighter colour than the rest 3 technical a light, bright area on a painting or photograph