mounter, climber - someone who ascends on foot; "a solitary mounter of the staircase"

mover - someone who moves

alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"

printing process, printing - reproduction by applying ink to paper as for publication

line - a mark that is long relative to its width; "He drew a line on the chart"; "The substance produced characteristic lines on the spectroscope"