glitch

UK: /ˈglɪtʃ/ US: /glɪtʃ/ ,(glich)

WordReference Random House Learner's Dictionary of American English © 2025

glitch /glɪtʃ/   n. [countable]

1. [Informal.] a minor defect or malfunction:
   A computer glitch forced the spaceflight cancellation.
2. Electricity a sudden interruption or surge in electric power.

WordReference Random House Unabridged Dictionary of American English © 2025

glitch  (glich), [Slang.]
n. 

1. a defect or malfunction in a machine or plan.
2. Computing any error, malfunction, or problem. Cf. bug¹ (def. 5).
3. Electricity a brief or sudden interruption or surge in voltage in an electric circuit.

v.t. 

4. to cause a glitch in:
   an accident that glitched our plans.

• Yiddish glitsh slippery area; compare glitshn, German glitschen to slip, slide
• perh. 1960–65

Collins Concise English Dictionary © HarperCollins Publishers::

glitch / ɡlɪtʃ/ noun

1. a sudden instance of malfunctioning or irregularity in an electronic system
2. a change in the rotation rate of a pulsar

Etymology: 20th Century: of unknown origin