Pronunciation

change
verb
  • (UK) IPA (key): /ˌrɛtrəʊˈfɪt/ or /ˈrɛtrə(ʊ)ˌfɪt/
  • (US) IPA (key): /ˌrɛtroʊˈfɪt/ or /ˈrɛtroʊˌfɪt/
noun

Plain form
retrofit

Third-person singular
retrofits

Past tense
retrofitted

Past participle
retrofitted

Present participle
retrofitting

  1. (transitive) If you retrofit something, you add components or accessories that were not previously installed on it.
    He retrofitted his car with a spoiler.

Singular
retrofit

Plural
retrofits

  1. (countable) A retrofit is the act of retrofitting something.