unsub
n.— «Button Up and four other “unsubs”—FBI shorthand for “unknown subjects”—together are thought to be responsible for more than 30 robberies, nearly one-third of the bank robberies committed in Washington since January.» —“Button Up Bandit, others hitting banks at rapid pace” by Sara Jean Green Seattle Times (Washington) May 12, 2006. (source: Double-Tongued Dictionary)
Further reading
For rock climbers, skiers, and other outdoor enthusiasts, the word send has taken on a whole new meaning. You might cheer on a fellow snowboarder with Send it, bro! — and being sendy is a really great thing. Plus: a nostalgic trip to Willa...
Twice a day the River Thames recedes, revealing a muddy shoreline. Hobbyists known as mudlarks stroll the surface searching for objects that have found their way into the river over the centuries, everything from ancient Roman jewelry to modern...