This is the 8852nd most frequent Japanese word.
森川
"森川" translates to "Forest River" and is commonly used as a Japanese surname.
In this sentence, '森川' is used as a surname to denote a specific individual, followed by the honorific 'さん' to show respect.
森川さんは日本文学の教授です。
Mr./Ms. Morikawa is a professor of Japanese literature.
Here, '森川' describes a geographical feature combining a forest ('森') and a river ('川'), possibly referring to a scenic natural location.
この森川は手つかずの自然です。
This Morikawa is untouched nature.
In this example, '森川' serves as part of a corporate name, signifying the company 'Morikawa Corporation'.