aftermarket

noun

af·​ter·​mar·​ket ˈaf-tər-ˌmär-kət 

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

Quality aftermarket sensors are about half the cost of the factory part and typically last just as long. —John Paul, The Providence Journal, 16 Jan. 2026

The biggest draw to the aftermarket is probably variety. —Scott Kramer, Forbes.com, 16 Jan. 2026

There are some good aftermarket sensors (tire stores know which ones) that are cheaper than the original. —John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 10 Jan. 2026

This partnership will look at installing the device in OEM saddles, while there’s also the choice of going for a custom aftermarket saddle that would come with the device pre-installed. —New Atlas, 4 Jan. 2026

Word History

Etymology

after- + market entry 1

First Known Use

1887, in the meaning defined at sense 3

Rhymes for aftermarket

• patriarchate
• supermarket
• market
• nonmarket
• premarket
• upmarket