1. Happening or arising or located within some limits or especially surface
   "internal party manoeuvring"; "internal organs"; "internal mechanism of a toy"
    
2. Located inward
   "an internal sense of righteousness";
   - inner, interior
    
3. Innermost or essential
   "the internal contradictions of the theory";
   - inner, intimate
    
4. Inside the country
   "the nation's internal politics";
   - home, interior, national
    
5. Occurring within an institution or community
   "internal squabbling within the corporation";
   - intragroup

See also: domestic, inland, inner, inside, interior, internecine, intramural, intrinsic, intrinsical [archaic], inward, position, spatial relation

Antonym: external

Encyclopedia: Internal