Many and Masses

Many adjective - Being of a large but indefinite number.

Masses and many are semantically related in people topic. In some cases you can use "Masses" instead the word "Many" as a noun or an adjective or a pronoun, when it comes to topics like common people.

Masses noun - The common people generally.

Many and masses are semantically related in common people topic. You can use "Many" instead the word "Masses" as a noun or a pronoun.