lid in WordNet English dictionary

1. headdress that protects the head from bad weather; has shaped crown and usually a brim
   hat  chapeau  lid 
   
2. either of two folds of skin that can be moved to cover or open the eye
   "his lids would stay open no longer"
   eyelid  lid  palpebra 
   
3. a movable top or cover (hinged or separate) for closing the opening at the top of a box, chest, jar, pan, etc.
   "he raised the piano lid"
   lid