naninilong engagement love eighteen second trimester 1. It refers to a decision to devote oneself to another person. 2. A kind of courtship in the province of Bulacan, where a man is serenading a woman under the house. 3. It is a formal agreement before getting married. 4. It is the right age for the Filipino to get marriage. 5. The phase of pregnancy that starts from week 13 to 27.