1. (n.) I, the ninth letter of the English alphabet, takes its form from the Phoenician, through the Latin and the Greek. The Phoenician letter was probably of Egyptian origin. Its original value was nearly the same as that of the Italian I, or long e as in mete. Etymologically I is most closely related to e, y, j, g; as in dint, dent, beverage, L. bibere; E. kin, AS. cynn; E. thin; E. dominion, donjon, dungeon.
2. (n.) In our old authors, I was often used for ay (or aye), yes, which is pronounced nearly like it.
3. (n.) As a numeral, I stands for 1, II for 2, etc.
4. (object.) The nominative case of the pronoun of the first person; the word with which a speaker or writer denotes himself.
Thesaurus Entries
Kilkenny cats, action, addend, affray, altercation, anagnorisis, angle, answer, antilogarithm, apologetics, apologia, apology, architectonics, architecture, argumentation, argumentum, assertion, atmosphere, background, barney, base, basis, bicker, bickering, binomial, blood feud, brawl, broil, case, casuistry, cat-and-dog life, catastrophe, characteristic, characterization, claim, coefficient, color, combat, combination, complement, complication, conflict, congruence, cons, consideration, constant, contention, contentiousness, contest, contestation, continuity, contrivance, controversy, cosine, cotangent, counterstatement, cube, cut and thrust, debate, decimal, defence, defense, demurrer, denial, denominator, denouement, derivative, design, determinant, development, device, difference, differential, disagreement, discriminate, disputation, dispute, dissension, dividend, divisor, donnybrook, donnybrook fair, e, elenchus, embroilment, enmity, episode, equation, evidence, exception, exponent, exponential, fable, factor, falling action, falling-out, feud, fight, fighting, fliting, flyting, formula, foundation, fracas, fray, function, fuss, gimmick, ground, hassle, head, hostility, hubbub, hurrah, i, ignoratio elenchi, imbroglio, incident, increment, index, integral, line, litigation, local color, logic, logomachy, matrix, matter, minuend, mood, motif, motive, movement, multiple, multiplier, mythos, norm, numerator, objection, open quarrel, paper war, parameter, passage of arms, peripeteia, permutation, pi, plaidoyer, plan, plea, pleading, pleadings, plot, point, polemic, polemics, polynomial, position, posture, power, proof, proposition, pros, pros and cons, quarrel, quarreling, quarrelsomeness, quaternion, quotient, radical, radix, reason, rebuttal, reciprocal, recognition, refutation, remainder, reply, response, rhubarb, riposte, rising action, root, row, rumpus, scheme, scrap, scrapping, secant, secondary plot, set-to, sharp words, sine, slanging match, slant, snarl, spat, special demurrer, special pleading, squabble, squabbling, stance, standpoint, statement, statement of defense, story, strife, structure, struggle, subject, subject matter, submultiple, subplot, subtrahend, summation, summing up, switch, talking point, tangent, tensor, testimony, text, thematic development, theme, thesis, tiff, tone, topic, tussle, twist, variable, vector, vendetta, verbal engagement, versine, war, war of words, warfare, wherefore, why, whyfor, words, wrangle, wrangling
