Which definition best fits an antique?

The definition of an antique typically refers to items that are at least 100 years old, which aligns with the U.S. definition. This timeframe establishes a clear distinction between antiques and other collectibles or vintage items, which may not have the same historical significance or age. An item being 100 years old or older often means it carries a certain value, quality, or craftsmanship that is sought after by collectors and businesses. This definition assists in identifying valuable pieces in auctions or sales, setting a standard that helps both sellers and buyers recognize what qualifies as an antique.

In contrast, other options either understate the age requirement or define items based on usability or the century in which they were made, which does not adhere to the widely accepted criteria for antiques. An item being at least 50 years old, for instance, would classify it as vintage rather than antique, while referencing the 21st century could include more contemporary items that do not meet the antique criteria at all.