signalize vs call attention

signalize and call attention both are verbs.

Word	Noun	Adjective	Verb	Adverb
signalize	No	No	Yes	No
call attention	No	No	Yes	No

As verbs, signalize and call attention are synonyms defined as:

Other synonyms of signalize include point out, signalise.

signalize (verb)	call attention (verb)
make conspicuous or noteworthy	point out carefully and clearly
communicate silently and non-verbally by signals or signs
point out carefully and clearly
provide with traffic signals