A personal identity document that may be used by a country to control and monitor the internal movement and residence of its citizens.

plural of internal passport

A student who studies in an institution of higher learning in a foreign country and is required to hold a student visa.

plural of international student

A person's "inner voice" which provides a running verbal monologue of what they are thinking, important in planning, problem solving, self-reflection, etc.

(communism) A member of any of various Trotskyist tendencies that hope to form bonds between workers of different countries

plural of international socialist

(phonology, grammar) Sandhi that occurs at morpheme boundaries inside of a word.

plural of internal ear

(anatomy) The inner ear.