Read between the lines
/ɹiːd bɪˈtwiːn ðə laɪnz/neutralUK · US · AU · IE · CA
What does “Read between the lines” mean?
Read between the lines means to find a hidden meaning that is not said or written directly.
When you read between the lines, you look for a deeper truth. The speaker does not say everything clearly. You must use clues to understand what they really mean.
This expression feels natural and thoughtful. It suggests that you are perceptive and can guess the truth without being told directly.
When do people say it?
People use this idiom when someone needs to understand feelings or facts that are not openly stated.
“He said he was fine, but if you read between the lines, you could tell he was upset.”
Is it formal or informal?
Register: neutral. It is most at home in both everyday conversation and professional writing. Most common in UK and US and AU and IE and CA.
Where does it come from?
This phrase likely comes from secret writing in military messages, where invisible ink was placed between normal lines of text. People had to read those empty spaces to find the real message.
Origin confidence: Reasonably documented
How do you say “Read between the lines” in other languages?
Last reviewed 2026-09-11