Definition as Noun

• the smallest whole number or a numeral representing this number

Definition as Adjective

• used of a single unit or thing; not two or more

• one, i, ane

• one, I, ace, single, unity

• "`ane' is Scottish"

• "he has the one but will need a two and three to go with it"; "they had lunch at one"

• 1 vs one
• 1 vs i
• 1 vs ane
• 1 vs I
• 1 vs ace
• 1 vs single
• 1 vs unity