1) Manipulator 2) Obsolete occupation 3) Operator 4) Telegraph operator 5) Telegrapher 1) Telegrapher 
A telegraphist or telegraph operator is an operator who uses the morse code in order to communicate by land or radio lines. Telegraphists were indispensable at sea in the early day of Wireless Telegraphy. During the Great War the Royal Navy enlisted many volunteers as telegraphists. == See also == ...
• (n.) One skilled in telegraphy; a telegrapher.
Te·leg'ra·phist noun One skilled in telegraphy; a telegrapher.