harbor in WordNet English dictionary

1. maintain (a theory, thoughts, or feelings)
   "bear a grudge"; "entertain interesting notions"; "harbor a resentment"
   harbor  harbour  hold  entertain  nurse 
   
2. hold back a thought or feeling about
   "She is harboring a grudge against him"
   harbor  harbour  shield 
   
3. keep in one's possession; of animals
   harbor  harbour 
   
4. secretly shelter (as of fugitives or criminals)
   harbor  harbour 
   

1. a place of refuge and comfort and security
   harbor  harbour 
   
2. a sheltered port where ships can take on or discharge cargo
   seaport  haven  harbor  harbour