Definitions

1. verb

to indicate or show the presence of something, especially a warning or a danger

“The warning sign was erected to signalize the hazardous road ahead.”

2. verb

to mark or indicate something with a signal, especially a signal flag or light

“The crew had to signalize the ship’s arrival with a burst of colorful flags.”

3. noun

a signal or warning, especially one given by a flag or light

“The signalize of the approaching storm was evident in the darkening sky.”