1

add–on

noun \ˈad-ˌän, -ˌȯn\

Definition of add–on

  1. :  something added on: such asa :  a sum or amount added onb :  something (such as an accessory or added feature) that enhances the thing it is added to computer hardware add–ons

First Known Use of add–on

1930


2

add–on

adjective

Definition of add–on

  1. 1 :  being or able to be added on an add–on device

  2. 2 :  able to be added to add–on certificates of deposit

First Known Use of add–on

1955


ADD–ON Defined for English Language Learners

add-on

noun

Definition of add–on for English Language Learners

  • : an extra part or device that can be added to something else to improve it


Law Dictionary

add–on

adjective

Legal Definition of add–on

  1. 1 :  being or able to be added on add–on no-fault benefits

  2. 2 :  able to be added to add–on certificates of deposit

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