Sign Language: M
Was there ever a village where everyone talked in sign language instead of speech language? See Martha's Vineyard.
Who was one of the pioneers in ASL/BSL poetry? See Dorothy Miles.
What was the nightmare event in history that impacted negatively on the lives of native signers? See Milan 1880.
Morphology: the study of the formation and inflection of words.
Morpheme: the smallest meaningful unit of a language. It's composed of phonemes or parameters/primes, the smallest units of sound or visue.