Synonyms for Harbor (same or very similar meaning)
WordNet sense 1 (a sheltered port where ships can take on or discharge cargo):
haven, seaport, harbourWordNet sense 2 (hold back a thought or feeling about):
shieldWordNet sense 3 (maintain (a theory, thoughts, or feelings)):
entertain, hold, nurseFrom the ODE community, based on WordNetadd/edit