delve into

phrasal verb·1 sense·particle into

Usefulness

Meanings

1

Study a subject deeply and carefully

Why “into”? Attention moves deeper to examine facts, details, or possible meaning.

The book delves into the history of the city.
The book studies the history of the city in depth.
The students delved into old letters from the war.
The students studied old letters from the war very carefully.

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The book delves into the history of the city. What does it mean?

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