English Reference
Idiom idiom

firm up


To make (tentative plans) more definite.

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


SIMPLE

Let's firm up our plans for the weekend.

CONTEXTUAL

We have a rough idea for the project, but we need to firm up the details before the meeting.

COMPLEX

The management team met to firm up the new policy, ensuring that every department understood the specific requirements before the official launch next month.


Related idioms2entries
  1. 01

    hold firm

    To keep to a conviction, practice, etc., unwaveringly.

  2. 02

    stand firm

    To resist assault or pressure.

Last updated August 10, 2026