highlighterhighlighter /ˈhaɪlaɪt̮ɚ/ noun [countable] 
a special light-colored pen used for marking words in a book, article, etc.
a special light-colored pen used for marking words in a book, article, etc.- discontinued
- discontinuity
- discontinuous
- discord
- discordant
- discotheque
- discount
- discountenance
- discounter
- discount rate
- discourage
- discouraged
- discouraged worker
- discouragement
- discouraging
- discourse
- discourteous
- discourteously
- discourteousness
- discourtesy
- discover
- discoverer
- discovery
- discredit
- discreditable