beacon |
a signal of light or radio waves that guides or warns ships or aircraft. |
beckon |
to signal to come using a motion of the head or hands. |
beep |
a short, high sound that serves as a signal. A beep is made by an electronic device or a car horn. [3 definitions] |
blinker |
a flashing light, especially one used on a car to signal that the car will turn and to show which way it will turn. |
cue1 |
anything done or said during a play that is a signal for an actor to say or do something. [1/3 definitions] |
fire alarm |
a device that gives off a noise to signal that a fire is occurring. |
flag1 |
to signal, using a flag or as if using a flag(sometimes followed by "down"). [1/2 definitions] |
flare |
a bright light used to signal or give light. [1/5 definitions] |
gavel |
a small wooden hammer. It is used by a judge or someone in charge of a meeting or auction to get attention, call for order, or signal a sale. |
half-mast |
a point halfway down a flagpole. A flag is flown at half-mast as a sign of respect or sorrow when someone has died or, on a ship, as a signal of great need or trouble. |
hang up |
to signal an end to one's call on (a telephone). [1/3 definitions] |
help |
used to express trouble; a signal for rescue. [1/8 definitions] |
indicate |
to signal or serve as a sign, token, or index. [1/3 definitions] |
interference |
static that makes a radio or TV signal not clear. [1/4 definitions] |
keypad |
a small panel with keys or buttons. Keypads are used to send a signal to an electronic device. Computers, telephones, calculators, and remote controls all have keypads. |
motion |
to signal by a movement of the body. [1/5 definitions] |
pipe1 |
to make music or give a signal with a pipe. [1/6 definitions] |
scanner2 |
a device that scans printed material and changes it into an electronic signal that can be read by a computer. |
scramble |
to mix up a signal or message so that it cannot be understood. [1/8 definitions] |
sign |
to communicate with a sign or signal. [1/7 definitions] |
signal |
acting as a signal. [4/7 definitions] |