We found one dictionary that defines the word subject areas:

General (1 matching dictionary)

1. subject areas: Vocabulary.com

(Note: See subject_area as well.)

Definitions from WordNet (subject area) ▸ noun:  a branch of knowledge ▸ Also see subject_area ▸ Words similar to subject areas ▸ Usage examples for subject areas ▸ Idioms related to subject areas ▸ Wikipedia articles (New!) ▸ Words that often appear near subject areas ▸ Rhymes of subject areas ▸ Invented words related to subject areas