• noun:   the 9th letter of the Roman alphabet
• noun:   the smallest whole number or a numeral representing this number

  Example: "He has the one but will need a two and three to go with it"

• noun:   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)
• adjective:   used of a single unit or thing; not two or more

  Example: "`ane' is Scottish"

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