Iitran

Simple PL/I-like language for students, on IBM 360.
[“The IITRAN Programming Language”, R. Dewar et al, CACM 12(10):569-575 (Oct 1969)].

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Iiwi
[ee-ee-wee] /iˈi wi/ noun 1. a Hawaiian honeycreeper, Vestiaria coccinea, having a red body, black wings, and a deeply curved pinkish-red bill.
Iiwm
if it were me
IJ
[ahy] /aɪ/ noun 1. an inland arm of the Ijsselmeer in the Netherlands: Amsterdam located on its S side.