I
Definitions
1.
The word you use to refer to yourself. It's how you say 'me'.
Usage Examples
I am going to the store.
I feel happy today.
I think it's a good idea.
2.
The ninth letter of the alphabet.
Usage Examples
The word 'ice' starts with the letter I.
Remember to dot your i's.
3.
The number 1. It's the smallest whole number (not counting zero).
Usage Examples
I only have one apple.
One plus one equals two; I + I = 2.
4.
A chemical element called iodine. It's used in medicine, photography, and dyes.
Usage Examples
Doctors use iodine to disinfect wounds.
Iodine is added to salt to help prevent thyroid problems.