extender

/ɪkˈstɛndər/
noun
  1. A device or substance that makes something longer, larger, or last longer.
    • He used a Wi-Fi extender to get a signal in the basement.
    • The chef added a sauce extender to make the recipe go further.
    • A hair extender can add length and volume to your hairstyle.
  2. A person or thing that prolongs or increases something.
    • This software is an extender of the original program's features.
    • The coach was a great extender of his players' careers.
    • She acted as an extender of the charity's reach into new communities.
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What does "extender" mean? | whatsthatwordmean | whatsthatwordmean