i

Less common meanings

5. 5
   instead of mepronoun · Inonstandardsubjective

   Used instead of me when a person talks about themselves as the object of a sentence.

   Grandpa took Jake and I fishing last weekend.

   Just between you and I, the movie was kind of boring.

   UsageMany people say you and I here, but you and me is better after a verb.

   Note
6. 6
   alphabet letternouncountable

   The name of the letter that is written I or i.

   When you say i out loud, it sounds just like 'eye.'

   My son always shouts i when he sings the alphabet song.

   Note
7. 7
   independentnoun · IUScountable or uncountableabbreviation

   Short for independent, a politician or voter who belongs to no party, as in I-Maine.

   Senator Ruth Adams (I-Maine) spoke first at the town hall meeting.

   The chart shows each lawmaker as a D, an R, or an I.

   UsageNews stories write (I-Colo.) after a lawmaker's name.

   Note
8. 8
   imaginary numbersymbol

   In math, a number that gives -1 when it is multiplied by itself.

   If you multiply i by itself, you get -1.

   On a graph of complex numbers, i is the point one unit straight up from zero.

   Note
9. 9
   iodinesymbol · I

   The symbol scientists use for the chemical element iodine.

   On the periodic table, look for I in the same column as Cl and Br.

   The lab report showed a small amount of I in the table salt.

   Note
10. 10
    noun · Icountable or uncountable

    The inner self, the part of a person that thinks and is aware.

    The teacher asked us to think about the I that looks out through our eyes.

    Some thinkers ask whether the I that wakes up today is the same I that went to sleep last night.

    Similarme

    Note
11. 11
    oxidation statesymbol · I

    In chemistry, a sign showing that an atom's oxidation state is plus one.

    Mercury(I) chloride was once used as a medicine.

    Copper(I) oxide is a red powder.

    UsageWrite copper(I) and say copper one.

    Note
12. 12
    list markernumerallowercaseordinal

    Letter form of ninth. It marks the ninth thing in a list labeled a, b, c, and so on.

    The questions go from a to j, so question i is the next to last.

    In her outline, point i comes right after point h.

    Note
13. 13
    loop countersymbol

    A letter often used in math and computer programs as a counter, especially for steps that repeat.

    The program adds one to i each time it goes around the loop.

    In the sum, i starts at 1 and goes up to 10.

    Note
14. 14
    electric currentsymbol · I

    A symbol for electric current in science and engineering.

    Use the meter to measure I in the wire.

    If the voltage goes up and nothing else changes, I goes up too.

15. 15
    identity matrixsymbol · I

    In math, a symbol for the identity matrix, a special grid of numbers.

    Multiply any square matrix by I and you get the same matrix back.

    If A times B gives I, then B undoes what A does.

    Note
16. 16
    moment of inertiasymbol · I

    In physics, a symbol for how hard it is to change the way an object spins.

    A ring has a larger I than a solid disk of the same size and mass.

    When the skater pulls her arms in, her I gets smaller and she spins faster.

    Note
17. 17
    interjection · Iobsolete

    Obsolete spelling of aye: yes. Old writers sometimes wrote I where we now write aye.

    Note
18. 18
    noun

    Short for instruction, in computing, one basic step a computer chip carries out, as in I-cache.
19. 19
    noun

    Short for instrumental case: a grammatical form showing what an action is done with, used in grammar tables.
20. 20
    symbol

    A symbol used in physics for isotopic spin.