Tov means good, pleasant, beautiful, or beneficial. It appears over 500 times. It is the word God uses to evaluate creation ('it was good') and covers moral goodness, aesthetic beauty, practical benefit, and emotional pleasure.
Creation is fundamentally tov — God's own evaluation. This affirms the material world's inherent goodness. God Himself is the source and standard of tov: 'Taste and see that the LORD is good' (Psalm 34:8). The goodness of God grounds all hope and ethics.