To make remarkable or conspicuous: a life signalized by high accomplishments. (verb-transitive)
To point out particularly.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "signalize" in a sentence
"Potlatch means "a giving," and John Fox's intention was to signalize his marriage with Lit-lit by a potlatch as generous as she was good - looking."
" I beg you to accept Mrs B — s acknowledgements for hers and all favours  — — Your Eagle is a noble fellow and no doubt could, over a joint of meat, signalize himself in"
"For him the “function of news is to signalize an event, the function of truth is to bring to light the hidden facts, to set them in relation with each other, and make a picture of reality on which men can act.”"