■ adverb above one's head; in the sky.
■ adjective
1》 situated ~.
2》 (of a driving mechanism) above the object driven.
3》 (of an expense) incurred in the upkeep or running of premises or a business.
■ noun
1》 an ~ cost or expense.
2》 a transparency for use with an ~ projector.
3》 an ~ compartment, especially on an aircraft.