Read the dictionary definition of lid. All definitions for this word.
1. headdress that protects the head from bad weather; has shaped crown and usually a brim
2. a movable top or cover (hinged or separate) for closing the opening at the top of a box, chest, jar, pan, etc.
1. he raised the piano lid
3. either of two folds of skin that can be moved to cover or open the eye
1. his lids would stay open no longer
See also: Merriam-Webster definition of lid