Language: en
Meaning: (transitive,idiomatic)To make (tentativeplans) moredefinite.Can wefirm upplans for the barbecue Sunday?1977-1980,Lou Sullivan, personal diary, quoted in2019, Ellis Martin, Zach Ozma (editors),We Both Laughed In PleasureJust got a call from Falces officefirming upmy hospital date.2023September 6, Nigel Harris, “Comment: Leaderless and rudderless”, inRAIL, number991, page 3:Sometime soon (if it isn't happening already), Labour leader Sir Kier Starmer and his team will befirming upplans for what they want to do in the crucial first 100 days of a new government.; (intransitive,idiomatic,of tentative plans)To become more definite.Let me know as soon as your plansfirm up.; (transitive)To make (muscles) moretonedthrough physicalexercise.He hopes tofirm uphis biceps a bit before meeting the girls.; (intransitive,of muscles)To become more toned through physical exercise.After weeks of working out, his biceps finally began tofirm upa bit.; (intransitive)To becomefirmerin consistency.Cook the omelet until the top has started tofirm up.
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