kat-agu (der. of tagu) 1adj. young adult male or female; adulthood ranges in age from about 15-35 years old. Kat-agu mo nan imbabalem. Your child is already a grown-up. Qualifier. Sim: hikon. (sem. domains: 2 - Person.) 2proc. to become an adult. Kimmat-agu di nagibbuy gubat. He became an adult after the war. ‑um‑/‑imm‑. der. kimmat-agu