This is the 9740th most frequent Japanese word.
蒋慧
"蒋慧" is not a typical Japanese word; it appears to be a Chinese name. It likely refers to a person's name.
Here, '蒋慧' is used as a proper noun to refer to a person named 蒋慧, preceded by 'さん', which is a polite Japanese suffix for addressing individuals.
蒋慧さんは日本語を勉強しています。
Ms. 蒋慧 is studying Japanese.
In this sentence, '蒋慧' is used as a personal name to indicate that the subject participated in an activity with this individual.
昨日、蒋慧と公園を散歩しました。
Yesterday, I walked in the park with 蒋慧.
Here, '蒋慧' shows possession using the particle 'の', which conveys that the opinion belongs to 蒋慧, emphasizing the relational context.