witness post
n.— «Sara Yurman, 33, is a geographer with the Gwinnett County planning department who specializes in mapmaking. She found a “witness post” in the Modoc community, a rare thing, so she said, that showed that Modoc sits 5 feet above sea level.» —“Cyclists head home to BRAG again with growing event” by Jim Galloway Atlanta Journal Constitution (Georgia) June 20, 1988. (source: Double-Tongued Dictionary)
Further reading
An anadrome is a word that forms a whole new word when you spell it backwards. For example, the word “stressed” spelled backwards is “desserts.” Some people’s first names are anadromes. There’s the girl named Noel...
What kind of book do people ask for most often in prison? Romance novels? No. The Bible? No. The most requested books by far are … dictionaries! A number of volunteer organizations gather and distribute used dictionaries to help inmates with...