"highlighting" in the noun sense
1. highlight, highlighting
an area of lightness in a picture
"highlighting" in the verb sense
1. foreground, highlight, spotlight, play up
move into the foreground to make more visible or prominent
"The introduction highlighted the speaker's distinguished career in linguistics"
2. highlight
apply a highlighter to one's cheeks or eyebrows in order to make them more prominent
"highlight the area above your eyebrows"
Source: WordNet® (An amazing lexical database of English)
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