I.D.
— Noun
– English
~ a card or badge used to identify the bearer; "you had to show your ID in order to get in"
i.e.
— Adverb
– English
~ that is to say; in other words
I.E.D.
— Noun
– English
~ an explosive device that is improvised
I.O.C.
— Noun
– English
~ organization responsible for organizing the modern Olympic Games
I.Q.
— Noun
– English
~ a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
I.W.W.
— Noun
– English
~ a former international labor union and radical labor movement in the United States; founded in Chicago in 1905 and dedicated to the overthrow of capitalism; its membership declined after World War I