English idiom · neutral · spoken & written · BrE & AmE
know something inside out: meaning and examples
know something inside out means know every detail of something.
Aprende la expresión como una unidad fija y observa la preposición y la forma verbal en los ejemplos.
این عبارت را بهصورت یک واحد ثابت یاد بگیرید و به حرف اضافه و شکل فعل در مثالها توجه کنید.
Lerne die Wendung als feste Einheit und achte in den Beispielen auf Präposition und Verbform.
Apprenez l’expression comme une unité fixe et observez la préposition et la forme verbale dans les exemples.
Memory hook: Build a clear mental picture from “know something inside out” and connect it to this meaning: know every detail of something.
How to use “know something inside out”
- Ask Priya — she knows the system inside out.
- You need to know the material inside out.
Common mistake: Treat “know something inside out” as a fixed expression. Notice its exact word order in the examples.
Learn it in context
This expression belongs to Lesson 22, where you can compare it with other idioms about knowledge and practise it interactively.
Open the full lesson →