From WordNet (r) 3.0 (2006):
i
adj 1: used of a single unit or thing; not two or more; "`ane'
is Scottish" [syn: one, 1, i, ane]
n 1: a nonmetallic element belonging to the halogens; used
especially in medicine and photography and in dyes; occurs
naturally only in combination in small quantities (as in
sea water or rocks) [syn: iodine, iodin, I, atomic
number 53]
2: the smallest whole number or a numeral representing this
number; "he has the one but will need a two and three to go
with it"; "they had lunch at one" [syn: one, 1, I,
ace, single, unity]
3: the 9th letter of the Roman alphabet [syn: I, i]