<u>Durante la guerra, los británicos y franceses trabajarían para mejorar la confiabilidad y efectividad del tanque. Continuarían produciendo 6,506 tanques entre ellos.</u>
Synonyms help us connect unknown words with known words. For example, one may not know the meaning of the word "nefarious" when used in this context: "The offense was more nefarious than previously thought." If we replace "nefarious" with "evil" or "wretched" the meaning is more comprehensible to those who don't know the meaning of "nefarious": The offense was more evil (wretched) than previously thought."
I hope this helps, I used nefarious as a somewhat uncommon term to better illustrate my point, and to explain why we use synonyms to learn new words. Simply put, synonyms bridge us to the unknown using the known as solid ground build from.
B. they were trades men or merchants of society
I think it means to have fun because it can’t be the same thing of function and so I think that it means to have fun