hat in WordNet English dictionary

1. headdress that protects the head from bad weather; has shaped crown and usually a brim
   hat  chapeau  lid 
   
2. an informal term for a person's role
   "he took off his politician's hat and talked frankly"
   hat 
   

1. put on or wear a hat
   "He was unsuitably hatted"
   hat 
   
2. furnish with a hat
   hat