1. warning signal an automatic signal (usually a sound) warning of danger
  2. starting signal a signal to begin (as in a race)
  3. morning sickness nausea early in the day
  4. training school a school providing practical vocational and technical training
  5. warning bell a bell used to sound an alarm
  6. turn signal a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn
  7. traffic signal a visual signal to control the flow of traffic at intersections
  8. warning light a cautionary sign of danger
  9. input signal signal going into an electronic system
  10. boarding school a private school where students are lodged and fed
  11. fogsignal a loud low warning signal that can be heard by fogbound ships
  12. earnings something that remunerates
  13. nursing school a school for training nurses
  14. wake-up signal (military) signal to wake up
  15. warning of war a warning to national policy makers that an enemy intends war or is preparing for war and is on a course that increases the risk of war
  16. evening-snow small California annual with white flowers
  17. firing squad a squad formed to fire volleys at a military funeral or to carry out a military execution
  18. electronic signal a signal generated by electronic means
  19. radio signal a radio wave used to transmit and receive messages
  20. fungus gnat mosquito-like insect whose larvae feed on fungi or decaying vegetation

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.