side letter
n.— «The situation was so dire in Peabody the School Committee last week passed what’s called a “side letter” to the teachers’ contract, a first for the district. The decision allows administrators to offer higher pay to new teachers in “critical shortage” areas: chemistry, mathematics and Spanish.» —“Demand up for teachers; districts hire until the last minute” by Stacie N. Galang Salem News (Massachusetts) Aug. 29, 2007. (source: Double-Tongued Dictionary)
Further reading
Ever wonder what medieval England looked and sounded like? In Old English, the word hord meant “treasure” and your wordhord was the treasure of words locked up inside you. A delightful new book uses the language of that period to create...
Centuries ago, monks who took a vow of silence developed their own hand signs, with hundreds of gestures, that are still in use today. Plus, how do speakers of different languages distinguish similar shades and tints of colors such as red, yellow...