710 ILCS 30/1-10

For the purposes of this Act: (a) "Arbitration" means any arbitration whether or not administered by a permanent arbitral institution. (b) "Arbitral tribunal" means a sole arbitrator or a panel of arbitrators. (c) "Court" means a court of competent jurisdiction of a country or state. (d) Where a provision of this Act, except Section 25-5, leaves the parties free to determine a certain issue, the freedom includes the right of the parties to authorize a third party, including an institution, to make that determination. (e) Where a provision of this Act refers to the fact that the parties have agreed or that they may agree or in any other way refers to an agreement of the parties, the agreement includes any arbitration rules referred to in that agreement. (f) Where a provision of this Act, other than in subsection (a) of Section 20-40 and subsection (a) of Section 25-25, refers to a claim, it also applies to a counter claim, and where it refers to a defense, it also applies to a defense to the counter claim.