(historical) An ancient empire of Western Asia founded as a kingdom by Arsaces I with his 3rd-century-BCE conquest of Parthia (only recently a satrapy of the Seleucid Empire) and subsequently greatly expanded by Mithridates I.

(historical) A Songhai state that dominated the western Sahel in the 15th and 16th centuries.

Any of the Ottoman, Safavid and Mughal empires, which all had considerable military success using then-innovative firearms, especially cannon and small arms.

(philosophy, phenomenology) In the thought of Immanuel Kant and Edmund Husserl, the self of each person, understood as the locus of personality and capable of being known as an object by means of reflective awareness, in contrast with the transcendental ego which is always an experiencing subject.

The official nickname for the state of New York in the United States of America. / Empire State Building

(historical) The empire ruled by the Achaemenid dynasty 550 BCE to 330 BCE

(statistics, singular only) Synonym of the 68-95-99.7 rule

An empire of the Mongols and Turkic peoples which existed in Asia from 1206 to 1368 and became the largest contiguous land empire in human history, stretching from Central Europe east to the Sea of Japan and from Siberia south to the Indian subcontinent and the Middle East.

Alternative spelling of nonempirical

plural of empirical research