add in

/ˈæd ɪn/
noun
  1. A feature or component that can be added to a computer program to give it extra functions.
    • I installed a grammar add-in for my word processor.
    • The photo editing software has many useful add-ins.
    • This browser add-in blocks annoying ads.
  2. An extra item or ingredient that can be added to a product or service, often for an additional cost.
    • You can choose add-ins for your salad at the counter.
    • The car's add-ins include a sunroof and leather seats.
    • The pizza comes with several add-ins like pepperoni and mushrooms.
Antonyms
What does "add in" mean? | whatsthatwordmean | whatsthatwordmean