signal
symbolic sign or indicating device made to give notice of some occurrence, command or danger
turn signal
blinking light to signal that a motor vehicle is about to change direction or shift lanes
warning
signal used to warn of danger
code smell
symptom in the source code of a program that possibly indicates a deeper problem
Vibrating alert
feature of communication devices that notify users by vibration
warning signal
visual or audible signal indicating potential or acute danger
England expects that every man will do his duty
signal sent by Admiral Nelson to English ships before the Battle of Trafalgar
Bravo Zulu
naval signal meaning 'well done'
tingler
the signal for the start of a game by the referee
distress signal
internationally recognized means for obtaining help
Answer tone
Feature of wireline modems
threat
one person's statement that they intend to harm another, or another's property
sign-on and sign-off
beginning and ending of operations for a radio or television station
display
set of ritualized behaviours that enable an animal to communicate to other animals about specific stimuli
emergency vehicle lighting
device used on a vehicle to signal emergencies
one-bit message
payload-less message that communicates a single bit of information by its mere presence
all clear
signal given by an air raid siren to indicate that a threat has passed
price signal
information conveyed to consumers and producers, via the price charged for a product