add-on

1 of 2

noun

ˈad-ˌän How to pronounce add-on (audio)
-ˌȯn
: something added on: such as
a
: a sum or amount added on
b
: something (such as an accessory or added feature) that enhances the thing it is added to
computer hardware add-ons

add-on

2 of 2

adjective

1
: being or able to be added on
an add-on device
2
: able to be added to
add-on certificates of deposit

Examples of add-on in a Sentence

Noun a blow-dryer that comes with a couple of add-ons for people who are serious about styling their hair
Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Noun
The firm’s Khronos iPhone case ecosystem helps support budding mobile moviemakers: The case is small enough for everyday use, but can be augmented with add-ons, including filters, lights, and tripod mounts, thanks to its eight electronic contacts and nine quick-release mechanisms. Chris Stokel-Walker, TIME, 30 Oct. 2024 Auditors were looking into the soap dispensers as part of a C-17 maintenance contract that was valued at $35.6 billion between its original and add-on terms beginning in 2011 and extended through 2031. Melvin Backman, Quartz, 30 Oct. 2024
Adjective
For these patients, Nexletol could be an effective add-on treatment. Nick Blackmer, Verywell Health, 22 Mar. 2023 These add-on panels, along with the bumpers and mirrors, are all painted the color of the body, which on the 16V is restricted to silver, red, or black. Csaba Csere, Car and Driver, 21 Mar. 2023 See all Example Sentences for add-on 

Word History

First Known Use

Noun

1930, in the meaning defined above

Adjective

1955, in the meaning defined at sense 1

Time Traveler
The first known use of add-on was in 1930

Dictionary Entries Near add-on

Cite this Entry

“Add-on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/add-on. Accessed 14 Nov. 2024.

Legal Definition

add-on

adjective
1
: being or able to be added on
add-on no-fault benefits
2
: able to be added to
add-on certificates of deposit

More from Merriam-Webster on add-on

Last Updated: - Updated example sentences
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