verb (used with object), un·der·lined, un·der·lin·ing.
Examples from the Web for underline
Because, rather than underline an emotion I have readily available, it reminds me of a world I passed by without noticing.
To underline the point, Noah Claypole “announced his intention of coming to see him hung.”
He also came out strongly in favor of stem cell research, again using a personal family story to underline his commitment.
That omission would seem very promising, save that department officials were reluctant to underline its importance.
Often in high-level diplomacy, key points made in private are restated publicly to underline their seriousness.
Underline on title page the first letter of words which must be lettered on back.Library Bookbinding|Arthur Low Bailey
This detail is important, and we regard it as useful to develop it at length; we should almost say, to underline it.Les Misrables|Victor Hugo
Again, I want to underline that all this is history for me, you see.Warren Commission (9 of 26): Hearings Vol. IX (of 15)|The President's Commission on the Assassination of President Kennedy
But it had been a close call, he did not need Tau's explanation to underline that.Plague Ship|Andre Norton
The following additional changes have been made and can be identified in the body of the text by a grey dotted underline.A Wife's Duty|Amelia Alderson Opie