Prefixes(intra-,inter-, intro-)

interregnum

an interval of time between the close of a sovereign's reign and the accession of his or her normal or legitimate successor

inter-

between or among

international

between or among nations; involving two or more nations

intragalactic

existing or occurring within a single galaxy

intrastate

existing or occurring within boundaries of a state, especially of the United States

intro-

in or inward

intramural

involving only students at the same school or college

intrapersonal

occurring within the individual mind or sel

interpersonal

of or pertaining to the relations between persons

intermural

of, relating to, or taking place between two or more institutions , cities, etc...

introversion

the act of introverting or state of being introverted

introspection

the act of looking within oneself

inter alia

among other things

introvert

a shy person

intercept

to take, seize, or halt

internet

vast computer network linking smaller computer networks worldwide

intra-

within

intravenous

within a vein

intracellular

within cell or cells

intranational

within one nation; occurring or existing within a nation's boundaries