I

I

I¹ [ī]

n.

1. a Roman numeral for 1; placed after another Roman numeral, it adds one unit (e.g., VI = 6), and placed before another numeral, it subtracts one unit (e.g., IV = 4)

2. Educ. a grade indicating incompletion of assigned work; an incomplete

I² [ī]

pron.

pl. we [ME i, ich, ih < OE ic, akin to Ger ich, Goth ik < IE base * ȇgom, orig. prob. neut. n. meaning “(my) presence here” > L ego, Gr egō, Sans ahám]

the person speaking or writing: personal pronoun in the first person singular: I is the nominative form, me the objective, mine the possessive, and myself the reflexive and intensive; my is the possessive pronominal adjective

n.

I's

the ego; the self

I³

abbrev.

1. Imperator

2. Dentistry incisor

3. Independent

4. interstate

5. Island(s)

6. Isle(s)

7. Physics moment of inertia

I⁴

symbol

1. Physics symbol electric current

2. Chem. symbol for iodine