A speaker or writer uses I to refer to himself or herself. I is the subject of a verb. It is always written as a capital letter.
You can also use I as part of the subject of a verb, along with another person or other people. You mention the other person first. Say 'My friend and I', not 'I and my friend'.
Be Careful!
Don't use 'I' after is. Say 'It's me', not 'It's I'.
Noun | 1. | ![]() chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter iodine-131 - heavy radioactive isotope of iodine with a half-life of 8 days; used in a sodium salt to diagnose thyroid disease and to treat goiter iodine-125 - light radioactive isotope of iodine with a half-life of 60 days; used as a tracer in thyroid studies and as a treatment for hyperthyroidism halogen - any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions |
2. | ![]() digit, figure - one of the elements that collectively form a system of numeration; "0 and 1 are digits" singleton - a single object (as distinguished from a pair) | |
3. | i - the 9th letter of the Roman alphabet Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters" | |
Adj. | 1. | ![]() cardinal - being or denoting a numerical quantity but not order; "cardinal numbers" |