In this article, unless the context otherwise requires:
1. "Bonds" means revenue bonds and includes notes where applicable.
2. "Undertaking" means the purchase, construction, leasing or acquisition of any real or personal property, works or facilities which the district is authorized by law to purchase, construct, lease or otherwise acquire, or the improvement, reconstruction, extension or addition to any real or personal property, works or facilities owned or operated by the district, or any program of development involving real or personal property, works or facilities which the district is authorized by law to purchase, construct, lease or otherwise acquire or the improvement, reconstruction, extension or addition to such program.