(uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group. / (countable) A single atom of this element.

(Britain) The British cabinet minister, responsible for law and order, who is head of the Home Office.

(astronomy) relating to the seismic activity of a star

A loosely woven cotton gauze, originally used to wrap cheese, but now used for various culinary tasks and by farmers to shade crops and keep birds off.