1. to add moisture or water vapor to the air

Examples

• We need to humidify the air in the baby’s room during winter.
• The doctor recommended using a machine to humidify the bedroom.
• Dry indoor air can be uncomfortable, so many people humidify their homes.
• Plants naturally humidify the air around them.
• The spa uses steam to humidify the treatment rooms.
• Cold weather often requires us to humidify our living spaces.