know through and through

know something through and through

to know something very well. I want you to know this project through and through before the staff meeting. I know my part in the play through and through.

know somebody through and through

to know someone very well and know everything about them She tried to hide her disappointment, but I know her through and through and I could tell she was upset.

Common Names:

Name	Pronounced	Usage
Shi	-	Chinese
Tarou	tah-ṙo:	Japanese
Izzy	IZ-ee	English
Lyubomir	-	Bulgarian, Medieval Slavic
Archbald	['a:tʃbɔ:ld]
Jaak	-	Estonian, Flemish