of, in, the inside; of, concerning, a country and its people; not foreign
within
Cases of word usage
1) the internal parts of an animal (e.g. heart, liver, kidneys), used for food (offal)
2) (of a plane etc) with its internal air-pressure controlled (pressurized)
3) to examine (something) closely; to search through (stored information) to find a particular part; to use special equipment to examine (a person) for internal disease (scan)
4) an electronic device used to examine a person for internal disease (scanner)
