intergovernmental vs overseas

intergovernmental

adj
  • Of, relating to, or involving two or more governments. 

overseas

adj
  • Used with ethnicities, nationalities, or religious affiliations: living (being resident) in a foreign country. 

  • Abroad. 

  • Across a sea; to or in an area across a sea. 

adv
  • Abroad. 

  • Across a sea; to an area across a sea. 

How often have the words intergovernmental and overseas occurred in a corpus of books? (source: Google Ngram Viewer )