plural aftermarkets
1
: the market for parts and accessories used in the repair or enhancement of a product (such as an automobile)
2
: a secondary market (see market entry 1 sense 4c(1)) available after sales in the original market are finished
a movie in the DVD aftermarket
3
: the market for a stock following its initial public offering when its shares can be freely traded among investors

Examples of aftermarket in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some of these features were only available as aftermarket upgrades and required complicated installations. Charles Singh, USA Today, 4 Aug. 2026 For now, the aftermarket pays nominal registry fees to officially access the manufacturers’ secure gateways. New Atlas, 2 Aug. 2026 Look for a sticker on the driver-side window and a small aftermarket button below the dashboard. Kurt Knutsson, FOXNews.com, 31 July 2026 The efforts come as vehicles have grown increasingly more complex and harder for individual owners or non-automaker certified stores to work on in the aftermarket. Michael Wayland, CNBC, 27 July 2026 See All Example Sentences for aftermarket

Word History

Etymology

after- + market entry 1

First Known Use

1887, in the meaning defined at sense 3

Time Traveler
The first known use of aftermarket was in 1887

Browse Nearby Words

Cite this Entry

“Aftermarket.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aftermarket. Accessed 13 Aug. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster