Italicize \I*tal"i*cize\, v. t. & i. [imp. & p. p. {Italicized};
p. pr. & vb. n. {Italicizing}.]
To print in Italic characters; to underline written letters
or words with a single line; as, to Italicize a word;
Italicizes too much.
[1913 Webster]
22 Moby Thesaurus words for "italicize": accent, accentuate, belabor, dwell on, emphasize, feature, give emphasis to, harp on, highlight, overaccentuate, overemphasize, overstress, place emphasis on, play up, point up, punctuate, rub in, spotlight, star, stress, underline, underscore