1.One who officiously communicates information of the private concerns of others; one who tells that which prudence should suppress.
2.(Mus.) A movable piece of ivory, lead, or other material, connected with the bellows of an organ, that gives notice, by its position, when the wind is exhausted.
4.(Mach.) A machine or contrivance for indicating or recording something, particularly for keeping a check upon employees, as factory hands, watchmen, drivers, check takers, and the like, by revealing to their employers what they have done or omitted.
6.A thing that serves to disclose something or give information; a hint or indication. "It supplies many useful links and telltales."
7.(Railroads) An arrangement consisting of long strips, as of rope, wire, or leather, hanging from a bar over railroad tracks, in such a position as to warn freight brakemen of their approach to a low overhead bridge.
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