A thing that serves to disclose something or give information; a hint or indication.
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.
Telling tales; babbling.
One who officiously communicates information of the private concerns of others; one who tells that which prudence should suppress.
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.
A mechanical attachment to the steering wheel, which, in the absence of a tiller, shows the position of the helm.
A compass in the cabin of a vessel, usually placed where the captain can see it at all hours, and thus inform himself of the vessel's course.
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.
The insatiable need for heartless power and ruthless control is the telltale sign of an uninitiated man - the most irresponsible, incompetent and destructive force on earth. Michael Leunig
And I went through a lot of detours and I took a lot of roads and things so yes, that's all there, but it's not meant to be shocking or telltale. Kim Novak
Know how to behave at a fine restaurant, which is a telltale measure of social maturity. Marilyn vos Savant
The cosmic game changed forever in 1992. Before then, logic told us that there had to be other planets besides the nine (if you still count poor Pluto) in our solar system, but until that year, when two astronomers detected faint, telltale radio signals in the constellation Virgo, we had no hard evidence of their existence. Thomas Mallon
When I really have to push and grope and scratch and claw to make a story work, that's a telltale sign that maybe something conceptually isn't right. David E. Kelley