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English definition of “all-”

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all-

prefix uk   /ɔːl-/ us    /ɑːl-/
used in front of many nouns to form adjectives meaning "every", "every type of", or "the whole of" that particular thing: an all-night bar (= a bar that is open for the whole night) used in front of many adjectives and present participles to mean "everything" or "everyone": an all-inclusive price all-conquering armies used in front of many nouns and adjectives to mean "completely": all-cotton socks (= socks that are made completely of cotton) When cooking the sauce, don't forget that all-important (= most or very important) ingredient, fresh basil. Do you believe in an all-powerful god (= one with unlimited power)?
(Definition of all- prefix from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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