detail · noun /dɪˈteɪl/Full view
A2 information about someone or something
Dictionary examples:

They haven't given me any details yet.

A police officer took down the details of what happened.

Learner example:

Here are the details you asked for. (Key English Test; A2; Hungarian)

B1 C one of many facts or pieces of information about something
Dictionary examples:

She insisted on telling me every single detail.

We don't know the full/precise details of the story yet.

Learner example:

Consequently we [want] to know every single detail about them and their lives. (First Certificate in English; B2; Turkish)

in detail
B1 including or considering all the information about something or every part of something
Dictionary examples:

We haven't discussed the matter in detail yet.

The book described her sufferings in great detail.

Learner example:

I'm really sorry that I didn't write back earlier, but to make up for this I will answer your questions in detail! (Preliminary English Test; B1; German)

go into detail
B2 to tell or include all the facts about something
Dictionary example:

I won't go into detail over the phone, but I've been having a few health problems recently.

Learner example:

In one of his books he really goes into detail [about] how children treat other children [who] have difficulties with their "new" [language]. (First Certificate in English; B2; Dutch)

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