1) Berserk 2) Correspondence 1) By mail 2) Card from a vacationer 3) Card or service start 4) Card Pa lost 5) Code or card preceder 6) Communicating 7) Communication 8) Extremely hostile 9) French word used in English 10) Government service 11) Kind of card 12) Kind of card or creed 13) Kind of card or union 14) Letter-based 15) Letter-related 
• (a.) Belonging to the post office or mail service; as, postal arrangements; postal authorities.
extremely hostile
Post'al adjective [ Confer French postal .] Belonging to the post office or mail service; as, postal arrangements; postal authorities. Postal card , or Post card , 
[adj] - of or relating to the system for delivering mail
adjective of or relating to the system for delivering mail; `postal delivery`