state gov Rajasthan High Court (Clerk/Jr. Assistant/Judicial Assistant) Mock Test 2022 English Vocabulary Phrase or Idiom Meaning
Select the most appropriate meaning of the given idiom.
Know like the back of one’s hand
1
to be unaware of the situation
2
to have detailed knowledge of something
3
to hit someone with the back of one’s hand
4
to copy another’s trade secrets