The word "一同" is formed through the combination of two distinct characters, each contributing its core meaning to create a new, unified concept. The first character, "一" (yī), carries the fundamental idea of "one" or "single". It is placed alongside the second character, "同" (tóng), whose essential meaning is "same" or "together". Their juxtaposition is not merely additive but synthesizes these ideas, where "one" modifies and intensifies "together", resulting in a compound that conceptually embodies "as one unit" or "in unison", emphasizing a collective state derived from singularity and sameness.