definiens: ( and, with correlative meaning, and ) or shall mean ( a ) all forms of taxation, assessments, charges, duties, fe es, levies or other governmental charges, including all national, state or local taxation ( including income, margin, value added, real and personal property, social sec urity, gross receipts, sales, use, ad valorem, franchise, profit s, license, withholding, payroll, employment, excis e, severance, occupation, premium or windfall profit taxes, medic al device excise tax, customs and other import or e xport duties, estimated and other taxes, goods and services, harm onized sales, social contribution, employment insur ance premium, unclaimed property, escheat, unemployment compensation, disability, transfer, service, licens e, or alternative minimum, environmental, stamp, and all other taxes of any kind imposed by any Governmental Authority, in each case in the nature of a tax, ass essment, charge, duty, fee, levy or other governmen tal charge, whether disputed or not, and any charges, fines, in terest or penalties imposed by any Governmental Aut hority or any additional amounts attributable or imposed with respect to such amounts, and ( b ) any Liability for payment of amounts described in clause ( a ) as a result of tran sferee or successor liability, or as a result of an y express or implied obligation to indemnify any other Person, b y Contract or otherwise or of having been a member of an affiliated, consolidated, combined, unitary or simi lar group )