1. things that exist or are used or enjoyed for only a short time
Usage: often plural
2. collectible items (such as postcards, tickets, or posters) that were originally expected to have only short-term usefulness or popularity
Usage: collecting term

Examples

• The museum displayed ephemera from the 1960s, including concert tickets and protest flyers.
• Digital photos have replaced much of the paper ephemera that families once treasured.
• Collectors prize vintage advertising ephemera like old matchbooks and trade cards.
• The artist incorporated everyday ephemera into her collages.
• Most social media posts are just ephemera, forgotten within days.
• The antique shop specialized in paper ephemera from the Victorian era.
• Wedding invitations and programs become cherished ephemera for many couples.