How to Pronounce "an open book"
expression
ˈæn/, /ən/ /ˈoʊpən/ /ˈbʊk
an OH-puhn BOOK
ˈɐn/ /ˈəʊpən/ /bˈʊk
uhn OH-puhn BOOK
Definition
If a person is 'an open book,' it means they are honest and easy to understand, showing their thoughts or feelings openly. The expression can also describe something that is simple and clear.
IPA Transcription
American English
ˈæn/, /ən/ /ˈoʊpən/ /ˈbʊk
British English
ˈɐn/ /ˈəʊpən/ /bˈʊk
Simplified Pronunciation
US
an OH-puhn BOOK
UK
uhn OH-puhn BOOK
Listen in Context
My sister is an open book; she always tells me how she feels.
He is an open book when it comes to his opinions.
This math problem is an open book for me.
You can't hide anything from her—she's an open book.