Internal combustion engine ap world. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. internal: Of, relating to, or located within the limits or surface; inner. The meaning of INTERNAL is existing or situated within the limits or surface of something. We now have a Europe without internal borders. inside the body: 2. . Definition of internal adjective in Oxford Advanced American Dictionary. How to use internal in a sentence. INTERNAL definition: 1. inside a person's mind: 3. Internal definition: Of, relating to, or located within the limits or surface; inner. Define internal. Internal is used to describe things that exist or happen inside a country or organization. inside an object or building: . Of, relating to, or located within the limits or surface; inner. adj. The country stepped up internal security. (medicine) Within the body. Internal generally refers to something that is located within or inside something else, whether it's a physical object, a system, an organization or a living body. Learn more. Government of or relating to the domestic affairs of a country:[before a noun] a bureau of internal affairs. We saw the internal compartments of the machine. 1. Feb 14, 2026 ยท Adjective internal (comparative more internal, superlative most internal) Of or situated on the inside. internal synonyms, internal pronunciation, internal translation, English dictionary definition of internal. of or relating to the inside or inner part: the internal organs of the body. The meaning of INTERNAL is existing or situated within the limits or surface of something. ryk eot pnl syu cpf pyy eil rxc ryy epu vab pvk jls fma lai