The holistic study of systems, from a scientific and/or philosophical perspective.

A food consisting of chopped meat and pickled herring, with oil, vinegar, pepper, and onions. / Hence, any mixture of various ingredients; an olio or medley; a potpourri; a miscellany.

(US) A person in charge of the baggage at a railway station.

(archaeology) The earliest known form of modern human (Homo sapiens) in Europe, dating from the late Paleolithic.