A prepaid international postage voucher.

A prefix that must be prepended to a telephone number in order to call a number outside one's own country.

An artificial satellite in low-earth orbit operating by a number of cooperating space programmes.

A holiday celebrated on November 19, commemorating the cultural and political achievements of men.

Alternative form of International Phonetic Alphabet

(pharmacology) An official generic and nonproprietary name given to a pharmaceutical drug or an active ingredient, as designated by the World Health Organization (WHO).

plural of international nonproprietary name

(art) An intense deep blue hue achieved by means of ultramarine pigment and a binder.

plural of International Standard on Auditing.

(accounting, UK) one of a set of professional standards for the performance of audits of financial information issued by the IAASB.