With joy in her heart, the girl twirled.

Meaning: This sentence means that a particular girl is very happy and is expressing her joy by spinning around.

Choice of Words: With is a preposition that means together with or accompanied by. Joy is a noun that refers to a feeling of great happiness or delight. In is a preposition that means inside or within. Heart is a noun that refers to the organ in the chest that pumps blood. The is an article that refers to a specific person or thing. Girl is a noun that refers to a young female person. Twirled is a verb that means to spin or turn around quickly. When you put these words together, you get a sentence that describes a specific girl who is spinning around quickly because she is feeling very happy.