Used for expressing negation; not

(obsolete) Iron.

Great anger; wrath; keen resentment.

(transitive, rare) To anger, to irritate.

(business) Initialism of industrial relations. / (business) Initialism of investor relations. / (computer science) Initialism of information retrieval. / (physics) Abbreviation of infrared.

Deeply angered but not outwardly displaying it. Full of ire; angry; wroth.

(law) Abbreviation of Ireland.

(sports) Abbreviation of Ireland. (Republic of Ireland) / (historical) Initialism of Institute of Radio Engineers.

Abbreviation of Ireland.

(linguistics) Abbreviation of Irish English.