substitute

US /ˈsʌbstɪˌtut, -ˌtjut/

UK /'sʌbstɪtju:t/

B2

verb

  • To perform the tasks instead of someone else
  • To replace one person or thing for another

noun

  • A person or thing acting in place of another

Examples

The company produces substitutes for lead in petrol.

There's no substitute for hard work.