I feel sick.

I Pronoun

— The person who is speaking or writing I am writing this, and you are reading it.

I Noun

— The ninth letter or the alphabet; previous H, next J. I is a vowel.

I Symbol

— A symbol meaning first, as in "George I" (which is said as "George the first"). — The symbol for iodine on the periodic table of elements. — The symbol for electrical current.

I Number

— This is the roman numeral for one (1). It may be written as I or i.

i Noun

— The ninth letter or the alphabet; previous H, next J. I is a vowel.

feel Verb

— When you feel something, you experience a sensation from touching it. I feel pain when I touch the fire. — If you feel happy, sad, angry, etc., you have that emotion. He feels happy when someone makes him laugh. — When you feel a thing, you are touching that thing. He felt the cold ice on his lips.

sick Adjective

— If a person, animal, or plant is sick, it has a disease and is not healthy. I'm sorry, I'm too sick to go to work today. If you're sick, you should go and see a doctor. — A way of saying something is bad. (Could mean one or both of the following.) — # If something is sick it makes you feel like vomiting. Usually this is not literal, but just means very bad. — #: Oh sick! There is dog shit all over everything. — # Sick can mean similar to person who is mentally ill (crazy), as an insult. This can also mean something bad that a crazy person might do. — #: Killing children is just plain sick. — #: That guy is really sick in the head. — You say this about something that is cool. That is, something you like or see as very good. That song is sick!