The meaning of ALL is the whole amount, quantity, or extent of. How to use all in a sentence. Synonym Discussion of All. ALL definition: the whole of (used in referring to quantity, extent, or duration). See examples of all used in a sentence. All means ‘every one’, ‘the complete number or amount’ or ‘the whole’. We use it most often as a determiner. We can use a countable noun or an uncountable noun after it: … When all refers to a whole class of people or things, we don’t use the: … So what's the difference? First you need to understand the difference between all and all the. We use all (without an article) when we're talking about the noun in general. Discover everything about the word ALL in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide. All means ‘every one’, ‘the complete number or amount’ or ‘the whole’. We use it most often as a determiner. We can use a countable noun or an uncountable noun after it: … When all refers to a whole class of people or things, we don’t use the: … Learn what all means with clear definitions, pronunciation, synonyms, and real-world examples. Simple explanations to help you use all correctly. 'All' means the whole quantity or extent of something, or the greatest possible amount or degree of something. It can be used as a determiner, pronoun, or adverb, and is often used in phrases like 'all in all' and 'all of a sudden.' n. The whole of one's fortune, resources, or energy; everything one has: The brave defenders gave their all. When you talk about all of one thing, you mean the whole thing. When Shakespeare writes, in As You Like It, “ All the world's a stage,” he means the whole world.