She lost track of time as she read.

Meaning: She became so engrossed in the book that she forgot about the time.

Choice of Words: Lost means to be unable to find something or someone. Track means a mark or line left by something that has moved.

Alternative Expressions

The girl became unaware of the passing time while she was reading.

Meaning: This means that the girl was so focused on reading that she didn't realize how much time had passed.

Choice of Words: Girl is a noun that refers to a young female. Became unaware means that she didn't know or notice something. Passing time refers to the time that is going by. While is a conjunction that connects two ideas. Reading is a verb that means to look at and understand written words.

She was so engrossed in her book that she didn't notice the hours slipping away.

Meaning: This means that the girl was so absorbed in reading her book that she didn't realize how much time had passed.

Choice of Words: Engrossed means that she was completely absorbed in something. Book is a noun that refers to a written work that is bound together. Didn't notice means that she didn't see or observe something. Hours slipping away refers to the time that was passing by without her realizing it.

Related Expressions