הֵיכָל hêykâl (H1964)

a large public building, such as a palace or temple

1) palace, temple, nave, sanctuary 1a) palace 1b) temple (palace of God as king) 1c) hall, nave (of Ezekiel's temple) 1d) temple (of heavenly temple)

probably from יָכֹל (H3201) (in the sense of capacity);