definiens: shall mean any and all federal, state, local or foreigntaxes, fees, levies, duties, tariffs, imposts, and other similar charges ( together with any and all interest, penalties andadditions to tax ) imposed by any Governmental Authority, including taxes or other charges on or with respect toincome, franchises, windfall or other profits, gross receipts, property, sales, use, capital stock, payroll, employment, social security, workers ’ compensation, unemployment compensation, or net worth ; taxes or other charges in thenature of excise, withholding, ad valorem, stamp, transfer, value added, or gains taxes ; license, registration anddocumentation fees ; and customs ’ duties, tariffs, and similar charges, together with any interest or penalty, addition totax or additional amount imposed by any Governmental Authority, and ( y ) shall mean returns, reports, claims for refund, declarations of estimated Taxes and information statements, including any schedule or attachmentthereto or any amendment thereof, with respect to Taxes filed or required to be filed with any Governmental Authority, including consolidated, combined and unitary tax returns