In this part the following words have the meanings indicated. “Authorizing resolution” means an administrative resolution adopted by the legislative body of a county. “County” includes a combination of two or more counties that have entered into an agreement under this part. “Note” means an evidence of indebtedness of a county issued under this part. “Note” includes: a bond; commercial paper; a refunding bond; a refunding note; and any other obligation. “State share”, with reference to a particular county on a particular date, means the aggregate amount of the anticipated State share of the costs of public school construction and capital improvements under § 5–303 of the Education Article that: has been approved by the Board of Public Works; and has not been advanced to the county.