1. people who have a strong desire to collect or obtain every item in a particular series or category

Examples

• Video game completists spend hours finding every hidden item and achievement.
• Comic book completists often pay high prices for rare issues to finish their collections.
• The museum attracted completists who wanted to see every piece in the exhibition.
• Movie completists make sure to watch every film in a director’s entire filmography.
• Stamp completists travel worldwide to find missing pieces for their albums.
• Many completists use online databases to track what they still need to acquire.