The term 'T, TO MORSE' is a reference TO Morse code, which is a system of communication developed in the early 19th century by Samuel Morse. Morse code uses a series of dots and dashes TO represent letters, numbers, and symbols. The crossword solutions for the term 'T, TO MORSE' are 'DASH' (4 letters) and 'DAH' (3 letters). In Morse code, the letter 'T' is represented by one DASH, or 'DASH', while 'TO' is represented by three dashes, or 'DAH'.