Final answer:
The 7-letter word for a fellow Communist Party member is 'Comrade.' It symbolizes unity among party members and is historically associated with the Communist Party, especially in the Soviet Union.
Step-by-step explanation:
A 7-letter word for a fellow Communist Party member, often referred to as Tovarich, is a) Comrade.
In the context of communist party vocabulary, 'Comrade' is used to signify fellow members bound by the same political views and objectives. It historically represented a form of address among communists and was particularly prominent in the Soviet Union, as well as in other communist countries.
Visual depictions of the spirit of comradeship can be found in propaganda posters that celebrate the leadership and triumphs of communism, often under the symbolic presence of iconic leaders like Lenin and Stalin. The word also symbolizes unity and equality among members of the Communist Party. 'Comrade' was a term frequently used in the artwork and literature produced during the height of the Soviet Union and can be seen in various forms, such as within the ranks of the Komsomol, the youth division of the Communist Party, or in slogans urging victory of communism.