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Signal is made for you. As an Open Source project supported by grants and donations, Signal can put users first. There are no ads, no affiliate marketers, no creepy tracking. Just open technology for a fast, simple, and secure messaging experience. The way it should be.
To use the Signal desktop app, Signal must first be installed on your phone.
Define signal. signal synonyms, signal pronunciation, signal translation, English dictionary definition of signal. n. 1. a. An indicator, such as a gesture or colored light, that serves as a means of communication. See Synonyms at gesture. b. A message co ...
At a prearranged signal, everyone started moving forwards. I usually set my watch by the time signal on the radio. At the given signal, the group rushed forward to the barrier. I've been trying to call him all evening, but I keep getting the engaged signal. A whistle is the signal for the children to line up ready to go into the classroom.
Signal definition, anything that serves to indicate, warn, direct, command, or the like, as a light, a gesture, an act, etc.: a traffic signal; a signal to leave. See ...
In signal processing, a signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time varying voltage, current or electromagnetic wave that carries information. A signal may also be defined as an observable change in a quality such as quantity.