Online Google Dictionary

signal 中文解釋 wordnet sense Collocation Usage Collins Definition
Adjective
/ˈsignəl/,
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signals, plural;
  1. Striking in extent, seriousness, or importance; outstanding
    • - he attacked the administration for its signal failure of leadership
Verb
  1. Transmit information or instructions by means of a gesture, action, or sound
    • - hold your fire until I signal
  2. Instruct (someone) to do something by means of gestures or signs rather than explicit orders
    • - she signaled Charlotte to be silent
  3. (of a cyclist, motorist, or vehicle) Indicate an intention to turn in a specified direction using an extended arm or flashing indicator
    • - Stone signaled right
    • - the truck signaled to turn left
  4. Indicate the existence or occurrence of (something) by actions or sounds
    • - they could signal displeasure by refusing to cooperate
  5. Give an indication of a state of affairs
    • - she gave a glance that signaled that her father was being secretive
Noun
  1. A gesture, action, or sound that is used to convey information or instructions, typically by prearrangement between the parties concerned
    • - the firing of the gun was the signal for a chain of beacons to be lit
    • - the policeman raised his hand as a signal to stop
  2. An indication of a state of affairs
    • - the markets are waiting for a clear signal about the direction of policy
  3. An event or statement that provides the impulse or occasion for something specified to happen
    • - the champion's announcement that he was retiring was the signal for scores of journalists to gather at his last match
  4. An apparatus on a railroad, typically a colored light or a semaphore, giving indications to train engineers of whether or not the line is clear

  5. A prearranged convention of bidding or play intended to convey information to one's partner

  6. An electrical impulse or radio wave transmitted or received
    • - equipment for receiving TV signals
  1. any nonverbal action or gesture that encodes a message; "signals from the boat suddenly stopped"
  2. notably out of the ordinary; "the year saw one signal triumph for the Labour party"
  3. sign: communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu"
  4. any incitement to action; "he awaited the signal to start"; "the victory was a signal for wild celebration"
  5. bespeak: be a signal for or a symptom of; "These symptoms indicate a serious illness"; "Her behavior points to a severe neurosis"; "The economic indicators signal that the euro is undervalued"
  6. an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
  7. Signal (Сигнал) is a Bulgarian rock band, most popular in the 1970s and 80s.
  8. In the card game of contract bridge, the partners defending against a contract may choose particular cards to play to communicate a signal.
  9. Signal is the 37th studio album released by the jazz fusion group Casiopea in 2005.
  10. A signal is a limited form of inter-process communication used in Unix, Unix-like, and other POSIX-compliant operating systems. Essentially it is an asynchronous notification sent to a process in order to notify it of an event that occurred. ...
  11. In the fields of communications, signal processing, and in electrical engineering more generally, a signal is any time-varying or spatial-varying quantity.
  12. "SIGNAL" is a song written by Ma-saya, Joker, Joey Carbone, Lisa Huang and Akira for the second single and second studio album of the Japanese boy band, KAT-TUN. ...
  13. An indication given to another person; An on-off light, semaphore, or other device used to give an indication to another person; An electrical or electromagnetic action, normally a voltage that is a function of time that conveys the information of the radio or TV program or of communication ...
  14. (Signals) Internal and external factors that control changes in cell structure and function.
  15. (Signals) Conventional card plays made by the defenders to give each other information.
  16. (Signals) The use of syndication technology such as RSS to notify users of content changes.
  17. (Signals) are the baby's way of informing a caregiver of an elimination need. Some babies signal very clearly from the beginning, while others may have very subtle signals or not signal at all. ...
  18. (Signals) on the player's track
  19. (Signals) or Signalling: An aid (visual, verbal or tactile) to let the lady know what move is coming up next. ...
  20. (signals) (in  materials science: Materials for computers and communications)
  21. (signals) Any form of clandestine tradecraft using a system of marks, signs, or codes for signaling between operatives.
  22. Each referee signals whether a lift has been successful or not by a light that signals their ruling. Red Light indicates the lift was not successful and a white light that it was successful.
  23. The form of variation with time of a wave whereby information is conveyed in some form whether it is acoustic or electronic.
  24. Software interrupts sent to a program to indicate that an important event has occurred. The events can vary from user requests to illegal memory access errors. ...
  25. A bolt out of the blue; that is, an event triggered by the operating system, probably when you're least expecting it.