4823 symbouleúō (from 4862 /sýn, "identify with" and 1011 /bouleúō, "to plan," which is derived from 1012 /boulḗ, "a resolute plan") – properly, to consult (counsel) together, like when people plan something out together with high resolve (keeping to their pre-set goals).

The only positive use of 4823 (symbouleúō) occurs in Rev 3:18 which refers to the triune God – showing the three eternal Persons of the Godhead working in mutual resolve (holy agreement).

["Buy from Me" tacitly alludes to the tri-personal nature of the Lord, revealed by the glorified Christ.]

deliberate, plot, advise

From sun and bouleuo; to give (or take) advice jointly, i.e. Recommend, deliberate or determine -- consult, (give, take) counsel (together).

see GREEK sun

see GREEK bouleuo

συνέβαλλον — 2 Occ.
συμβασιλεύσωμεν — 1 Occ.
συμβασιλεύσομεν — 1 Occ.
συμβιβάσει — 1 Occ.
συμβιβασθέντες — 1 Occ.
συμβιβάζων — 1 Occ.
συμβιβαζόμενον — 2 Occ.
συμβιβάζοντες — 1 Occ.
συνεβίβασαν — 1 Occ.
συμβουλεύω — 1 Occ.
συνεβουλεύσαντο — 2 Occ.
συμβούλιον — 7 Occ.
συμβουλίου — 1 Occ.
σύμβουλος — 1 Occ.
Συμεών — 7 Occ.
συμμαθηταῖς — 1 Occ.
συμμαρτυρεῖ — 1 Occ.
συμμαρτυρούσης — 2 Occ.
συμμερίζονται — 1 Occ.
συμμέτοχα — 1 Occ.