glitch

1. (countable) A problem affecting function.Examples: "They are still trying to work out all the glitches."; "Glitches—a spaceman’s word for irritating disturbances."; "A déjà vu is usually a glitch in the Matrix. It happens when they change something."Synonyms: bug, hitch, imperfection, quirk, gremlincountable

2. (countable, informal, engineering) An unexpected behavior in an electrical signal, especially if the signal spontaneously returns to expected behavior after a period of time.Examples: "Another term we adopted to describe some of our problems was "glitch." Literally, a glitch is a spike or change in voltage in an electrical circuit which takes place when the circuit suddenly has a new load put on it. You have probably noticed a dimming of lights in your home when you turn a switch or start the dryer or the television set."countableinformal

3. (video games) A bug or an exploit.Examples: "Performing this glitch gives you extra lives."; "How to reach 8.555 ー The glitch You need to have Wrex alive and sabotage the cure. Without the glitch, Wrex will discover the lie and try to kill you after Priority: Citadel II when you try to go back to the Normandy. Triggering this scene will remove Wrex and the Clan Urdnot in the war assets list The glitch is easy, when you want to leave the Citadel, simply go to a fast travel shuttle, then in a DLC area (Dr. Bryson's Lab or Silversun Strip) Then again the shuttle, and go back to the Normandy from here"countableuncountable

4. (uncountable, music) A genre of experimental electronic music since the 1990s, characterized by a deliberate use of sonic artifacts that would normally be viewed as unwanted noise.Examples: "You can hear this in the contemporary genre of ‘glitch’, where artists like Oval and Fennesz make radically beautiful music using the snaps, crackles and pops emitted by damaged CDs, malfunctioning software, etc."uncountable

5. (astronomy, countable) A sudden increase in the rotational frequency of a pulsar.countable