different between kashrut vs mashgiach

English

Hebrew ??????????? (kashrut).

kashrut (uncountable)

Borrowed from Hebrew ????????????.

mashgiach (plural mashgiachs or mashgichim)

(Judaism) Somebody who supervises the kashrut status of food in a restaurant. [from 20th c.]
- 2013, Thomas Pynchon, Bleeding Edge, Vintage 2014, p. 24:
  Kashruth fraud in Brooklyn. Seems a goon squad of fake mashgichim or kosher supervisors have been making their way around the neighborhoods pulling surprise ‘inspections’ on different shops and restaurants, selling them fancy-looking certificates to put in the window […]

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