كتم1 كَتَمَ , aor. ـُ , inf. n. كَتْمٌ [and كِتْمَانٌ], doubly trans., He concealed, or suppressed, a secret. (Mgh.) b2:  كَتَمَ الرَّبْوَ: see a verse cited in the last paragraph of art. عور.5 تَكَتَّمَ (K, art. دلس) He (a man) concealed, or hid, himself. (T, K, same art.) 6 تَكَاتَمُوا They practised concealment, one with another: see تَدَافَنُوا.كَتُومٌ A strict concealer of secrets.كَاتِمٌ meaning مَكْتُومٌ: see دَافِقٌ, in two places. b2:  فِى كَاتِمِ السِّرِّ: see a verse cited in conj. 3 of art. عرض.