1) Assembled 2) Currently meeting 3) Holding court 4) Meeting 5) Sitting 
• (n.) That in which one sits, as a bathing tub. • (n.) The act of sitting, as in a tub or bath.
In·ses'sion noun [ Latin insessio , from insidere , insessum , to sit in. See Insidious .] 1. The act of sitting, as in a tub or bath. 'Used by way of fomentation, insession , or bath.' [ R.] Holland. 2. That in which one sits, as a bathing...