Meaning of on supply in English:

on supply

phrase

  • (of a schoolteacher) acting as a temporary substitute for another.

    ‘she is on supply at a school in Middlesbrough’
    • ‘If we do have a male working here, say on supply, they don't make him feel awkward or uncomfortable, they treat him as just another colleague.’
    • ‘Once she had graduated, Rowling worked on supply for a year, teaching French.’