overheadˈ adverb

1. Above one's head
2. Aloft
3. In the zenith
4. In complete submergence
5. Taking one with another, in the lump, on the average apiece (Scot)

1. Above one's head
2. Located above
3. Well above ground level
4. (of a projector) designed to sit on a speaker's desk and project transparencies on a screen behind him or her
5. All-round, general, average

1. (usu in pl) the general expenses of a business, such as heating and lighting of premises, etc, as distinct from the direct cost of producing an article (also overhead costs or charges)
2. A transparency viewed by means of an overhead projector
3. A shot played from above one's head (tennis, etc)