The following words and phrases when used in this act shall have the meanings given to them in this section unless the context clearly indicates otherwise:
"Construction." Erection, reconstruction, demolition, alteration, modification, custom fabrication, building, assembling, site preparation and repair work done on any real property or premises under contract, whether or not the work is for a public body and paid for from public funds.
"Department." The Department of Labor and Industry of the Commonwealth.
"Employee." Either of the following:
"Employer." Either of the following:
"Secretary." The Secretary of Labor and Industry of the Commonwealth or the secretary's authorized representative.
"Unemployment Compensation Law." The act of December 5, 1936 (2nd Sp. Sess., 1937 P.L. 2897, No. 1), known as the Unemployment Compensation Law.
"Workers' Compensation Act." The act of June 2, 1915 (P.L. 736, No. 338), known as the Workers' Compensation Act.
43 P.S. § 933.2