Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “firm sth up”

firm sth up

verb uk phrasal verb with firm   /fɜːm/ us    /fɝːm/
to make something more certain or less likely to change: Could we have a meeting so we can firm up the details of our agreement?Planning, expecting and arrangingPlotting and trapping
(Definition of firm sth up phrasal verb, verb from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of firm sth up?
Browse related topics

You are looking at an entry to do with Planning, expecting and arranging, but you might be interested in these topics from the Thinking about the future topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “firm sth up” in other dictionaries

Translations of “firm sth up”

Word of the Day

pint

a measure for liquid equal to about half a litre

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More