This is the 9405th most frequent Japanese word.
秀二
"秀二" is a Japanese male given name, typically meaning "excellent" (秀) and "second" (二).
Here, "秀二" is used as a name to refer to an individual, Shūji. The honorific "さん" is added respecting Japanese etiquette.
秀二さんは勉強が得意です。
Shūji excels at studying.
In this sentence, "秀二" again serves as a name, and the suffix "君" is appended indicating familiarity or addressing a younger male.
昨日、秀二君と映画を見ました。
Yesterday, I saw a movie with Shūji.
Here, "秀二" is accompanied by "先生" (Teacher), indicating a professional title along with the person's name.