Available Definitions:
1) obj. - The plural nominative case of the pronoun of the first person; the word with which a person in speaking or writing denotes a number or company of which he is one, as the subject of an action expressed by a verb.
2) - As a numeral, I stands for 1, II for 2, etc.
3) object. - The nominative case of the pronoun of the first person; the word with which a speaker or writer denotes himself.