Gadol means great, large, important, or mighty. It appears over 500 times. It describes physical size, importance, power, and intensity — from a great city to a great king to a great act of God.
God's greatness is a central theme of worship: 'Great is the LORD and most worthy of praise' (Psalm 145:3). The word describes God's great love, great deeds, great faithfulness, and great name. It distinguishes the 'great day of the LORD' in prophetic literature.