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English definition of “uppermost”

uppermost

adjective, adverb     /ˈʌp.ə.məʊst/ US  /-ɚ.moʊst/
in the highest position or having the most importance: The office block's uppermost floors were engulfed with flames. Store the canisters with their lids uppermost. What's uppermost in your mind just before a race?Up and upwardMoving upwardsVery important or urgent
(Definition of uppermost adjectiveadverb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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