1. a person whose job is to clean buildings, rooms, or other places
2. a substance or device used for cleaning
3. a business that cleans clothes

1. comparative form of clean; more clean

Examples

• The office cleaner arrives every evening at six o’clock.
• She works as a cleaner at the hospital.
• This glass cleaner removes streaks effectively.
• I need to pick up my suit from the cleaner.
• The kitchen looks much cleaner after we scrubbed it.
• Her room is cleaner than her brother’s room.
• Use a stronger cleaner for tough stains.