Yea/jeɪ/ Definition 1 of 3Pro Tip 1/2Archaic Usage Use 'yea' in historical or biblical contexts to sound old-fashioned or poetic. Yea, verily, the knight ventured forth. Pro Tip 2/2Affirmative Emphasis 'Yea' adds emphasis to a 'yes' response, making it stronger or more heartfelt. Yea, I shall join thee in celebration.