1. making an exact copy of something
Usage: present participle of duplicate
2. doing something again in the same way
Usage: present participle of duplicate

1. relating to or used for making copies
Usage: used before nouns

Examples

• She is duplicating the report for all team members.
• The machine is duplicating keys while you wait.
• We’re duplicating our efforts by working on the same project separately.
• The duplicating equipment needs regular maintenance.
• He spent hours duplicating the original artwork.
• The office has a duplicating service for important documents.
• They’re duplicating the successful marketing strategy in other cities.