| I | the 9th letter of the Roman alphabet |
|---|---|
| I | the smallest whole number or a numeral representing this number |
| I | a nonmetallic element belonging to the halogens |
| I | used of a single unit or thing |
| I | the first of two books in the Old Testament that tell of Saul and David |
| I | girder having a cross section resembling the letter `I' |
| I | English literary critic who collaborated with C. K. Ogden and contributed to the development of Basic English (1893-1979) |
| I | United States journalist who advocated liberal causes (1907-1989) |
| I | United States architect (born in China in 1917) |
| I | a card or badge used to identify the bearer |
| I | that is to say |
| I | a measure of a person's intelligence as indicated by an intelligence test |