Main Entry: ²signal

Function: verb

Inflected Form(s): sig·naled or sig·nalled; sig·nal·ing or sig·nal·ling \-nə-liŋ\

Date: 1805

transitive verb 1 : to notify by a signal <signal the fleet to turn back>
2 a : to communicate or indicate by or as if by signals <signaled the end of an era> b : to constitute a characteristic feature of (a meaningful linguistic form)intransitive verb : to make or send a signal

— sig·nal·er or sig·nal·ler noun