1. a device that sprays water in drops or a fine stream, especially for watering lawns and gardens
2. an automatic fire safety device that releases water when activated by heat or smoke

Examples

• The lawn sprinkler watered the grass every morning at six.
• We set up a sprinkler in the backyard for the kids to run through.
• The fire sprinkler activated when smoke filled the room.
• All office buildings must have sprinkler systems installed.
• She adjusted the sprinkler to cover the entire flower bed.
• The sprinkler head was damaged and needed replacement.
• Turn off the sprinkler before mowing the lawn.