Collector-item is a noun that refers to an item that is rare, valuable, and sought after by collectors. Synonyms for this term include rare item, precious object, collectible, artifact, memorabilia, antiques, and curiosities. A rare item is a unique or unusual item that is highly prized by collectors. Precious objects are valuable items that are not easily found. Collectibles are items that are actively sought by collectors and are often sold at auction. Artifacts are historic or cultural objects that are admired for their significance and rarity. Memorabilia includes items associated with famous people or events. Antiques are items that have been around for a long time, and curiosities are unique or unusual items that intrigue collectors.