A teacher is one whose occupation is to instruct, especially in schools.
Positive: Dreaming of a teacher could represent Jesus Christ or the Holy Spirit. It could also represent the revelation of God, important instruction, a gift from God to the body, the fivefold ministry, or an authority.
Negative: Dreaming of an evil or corrupt teacher could represent subjecting oneself to ungodly instruction or unwise counsel.
(John 3:2; Ephesians 4:11; Psalm 18:34; Hebrews 8:11; 1 Timothy 4:1-2; Job 21:22; 2 Samuel 22:35; Proverbs 3:5; Mark 11:13-17).