enlarge

(verb) make larger. Example: "She enlarged the flower beds."

(verb) make large. Synonyms: blow up, magnify. Example: "Blow up an image."

(verb) become larger or bigger.

(verb) add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing. Synonyms: elaborate, lucubrate, expatiate, exposit, flesh out, expand, expound, dilate. Example: "She elaborated on the main ideas in her dissertation."