English Reference
Idiom idiom

read in


To allow access to classified information.

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.


SIMPLE

The manager will read you in on the new project tomorrow.

CONTEXTUAL

Before the meeting starts, the director needs to read the new team members in on the confidential security protocols.

COMPLEX

Once the security clearance was finalized, the intelligence officer was finally read in on the details of the covert operation.


Related idioms8entries
  1. 01

    dictated but not read

    Dictated, as to a secretary or stenographer, but not proofread by the person who dictated it.

  2. 02

    have one's head read

    To have one's mental health assessed, to receive a psychiatric examination.

  3. 03

    quick read

    A book, periodical, or other printed matter that is enjoyable to read and can be read quickly.

  4. 04

    read between the lines

    To infer a meaning that is not stated explicitly.

  5. 05

    read lips

    To lipread.

  6. 06

    read minds

    To read people's minds (in general).

  7. 07

    read oneself in

    To read aloud the Thirty-nine Articles and the Declaration of Assent; required of a clergyman of the Church of England when he first officiates in a new benefice.

  8. 08

    read out

    To read something and say the words to inform other people; to call.

Last updated August 10, 2026