#1 signalize v. [signalise] provide with traffic signals; "signalize a busy intersection". wn
#2 signalize v. [sign, signal, signalise] communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu". wn
#3 signalize v. [signalise, point out, call attention] point out carefully and clearly. wn
#4 signalize v. [signalise, distinguish] make conspicuous or noteworthy. wn
vizzz