invocation, n. [prayer], supplication.
involuntary, a. [uncontrollable], instinctive, [automatic], [compulsory], [forced].
inwards, n. pl. entrails, [intestines], [bowels], [guts]; viscera; giblets, inmeats, umbles.
iota, n. [scintilla], tittle, [atom], [mite], [jot], [whit], [bit], [particle].
Ireland, n. Erin, Emerald Isle.
iridescent, a. prismatic, nacreous.
iris, n. flower-de-luce, fleur-de-lis, [flag].
Irish, a. Hibernian.
Irishman, n. Hibernian, Milesian, Teague, Pat, Paddy.