#1 signalise v. [signalize] provide with traffic signals; "signalize a busy intersection". wn
#2 signalise v. [sign, signal, signalize] 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 signalise v. [signalize, point out, call attention] point out carefully and clearly. wn
#4 signalise v. [signalize, distinguish] make conspicuous or noteworthy. wn
vizzz