For you search query Mitre we found around 18747 songs. We may show you only some of them on this page. the official headdress of a bishop in the Western Church, in its modern form a tall cap with a top deeply cleft crosswise, the outline of the front and back. The latest Tweets from MITRE (@MITREcorp). MITRE applies systems thinking to national challenges in defense, cybersecurity, healthcare, homeland security.