Buz describes the feeling or act of contempt — regarding someone or something as worthless, despicable, or beneath consideration. It appears in contexts of social shaming, rejection by family (Job 12:5), and the scorn heaped on the righteous by the wicked.
Scripture consistently portrays buz as something the wicked practice but the wise avoid. Proverbs warns that contempt follows the proud (Proverbs 18:3) while the humble receive grace. Prophetically, the Suffering Servant was held in contempt by men (Isaiah 53:3 uses the related bazah), yet God vindicates the despised. The resurrection reverses every contempt — those who scorned will bow (Philippians 2:10-11).