explanation

noun
A2
OPAL
OPAL
1
A2
a statement, fact, or situation that tells you why something happened; a reason given for something
توضیح, شرح, تبیین
2
A2
a statement or piece of writing that tells you how something works or makes something easier to understand
توضیح, تشریح, بیان
Other parts of the book contain unnecessarily lengthy explanations.
For a full explanation of how the machine works, turn to page 5.
The teacher gave the children a detailed explanation of the story.
He entered into a technical explanation about software and programming.