transmit thoughts or feelings

any nonverbal action or gesture that encodes a message

language expressed by visible hand gestures

a gesture that is part of a sign language

someone who can use sign language to communicate

signal by or as if by a flag or light waved according to a code

send signals by or as if by semaphore

signal by means of a mirror and the using the sun's rays

communicate or signal with a flag

give a signal by whistling