NOS

What does NOS stand for on online marketplaces?

New old stock

NOS refers to an item that's old, yet brand new, having never been opened or used. These items are often products that have been discontinued or replaced, but have lingered in storage, essentially fresh relics from the past.

You will commonly see NOS on marketplaces like eBay when someone uncovers a forgotten stash of pristine vintage goods, like an untouched vinyl record or a classic gadget still in its original packaging. Collectors and aficionados get especially excited by NOS finds, as they offer a chance to own a piece of history in impeccable condition, such as a rare action figure or a retro computer.

Example

hey dude, i just found some vintage guitar parts for sale
nice! are they used or NOS?
they're NOS. never been used, just old stock
NOS Reddit post
NOS Reddit post

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Updated April 16, 2026

NOS definition by Slang.net - The Slang Dictionary

This page explains what the acronym "NOS" means. The definition, example, and related terms listed above have been manually compiled and written by the Slang.net team.

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