Any kind of teaching, written or spoken, handed down from generation to generation. In Mark 7:3,9,13, Colossians 2:8, this word refers to the arbitrary interpretations of the Jews. In 2 Thessalonians 2:15; 3:6, it is used in a good sense. Peter (1 Peter 1:18) uses this word with reference to the degenerate Judaism of the "strangers scattered" whom he addresses (Compare Acts 15:10; Matthew 15:2-6; Galatians 1:14).
These dictionary topics are from M.G. Easton M.A., D.D., Illustrated Bible Dictionary, Third Edition, published by Thomas Nelson, 1897. Public Domain, copy freely.
Easton, Matthew George. "Entry for 'Tradition'". "Easton's Bible Dictionary".