#1 i n. [iodine, iodin, I, atomic number 53] 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). wn
#2 i s. [one, 1, ane] used of a single unit or thing; not two or more; "'ane' is Scottish". wn
#3 i n. [one, 1, I, ace, single, unity] 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". wn
#4 i n. [I] the 9th letter of the Roman alphabet. wn
#5 i n. [I] the 9th letter of the Roman alphabet. wn
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