Used to form adjectives and nouns describing people of a particular city, region, or country, and the language spoken by these people.

used to indicate a plural form of some words of Latin or Italian origin, such as fungi, virtuosi or concerti

(electronics) Initialism of Intelligent Electronic Device (a sensor, actuator, or PLC used as part of a SCADA system)

The speaker or writer, referred to as the grammatical subject, of a sentence. / (nonstandard) The speaker or writer, referred to as the grammatical object, of a sentence.

(metaphysics) The ego.

The ninth letter of the English alphabet, called i and written in the Latin script.

The ordinal number ninth, derived from this letter of the English alphabet, called i and written in the Latin script.

(US, roadway) Interstate. / (grammar) Abbreviation of instrumental case. / (computing) Abbreviation of instruction.

Obsolete spelling of aye.

(rare) plural of i, the name of the letter I.