prēoccˈupancy noun

1. The circumstance of occupying before others
2. The condition of being preoccupied

prēoccˈupant noun

A prior occupant

prēoccˈupate transitive verb (obsolete)

1. To preoccupy
2. To anticipate

prēoccupāˈtion noun

1. Absorption, engrossment
2. Abstraction, pensiveness
3. An enthusiasm, chief interest or obsession
4. Prejudice (obsolete)
5. The act or fact of occupying beforehand or before others

prēoccˈupied adjective

1. Lost in thought, abstracted
2. Having one's attention wholly taken up, engrossed (with with)
3. Already occupied
4. (of a genus or species name) not available for adoption because it has already been applied to another group