Meaning of telltale

1. The telltale signs of exhaustion were evident in her bloodshot eyes and slumped posture.
2. The broken lock on the window was a telltale indication that someone had tried to break in.
3. His nervous fidgeting was a telltale sign that he was hiding something.
4. The telltale odor of smoke alerted the firefighters to the presence of a fire in the building.
5. The telltale red stains on the carpet revealed that someone had spilled wine at the party.
6. The telltale sound of footsteps outside her door made her heart race with fear.
7. The telltale twitch in his eye gave away his anxiety during the job interview.
8. The telltale chirping of the birds outside signaled the arrival of spring.
9. The telltale tracks in the snow showed that a deer had passed through the area.
10. The telltale beep of the alarm system confirmed that someone was trying to break into the house.