The whole of (used in referring to quantity, extent, or duration). When we say all (of) the students, we're talking about a specific group of students. Every one (of), or the complete amount or number (of), or the whole (of):
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The new version is simple and easy to use We use all (of) the (with an article), when we're talking about a specific group of the noun. When shakespeare writes, in as you like it, “ all the world's a stage,” he means the whole world.
The meaning of all is the whole amount, quantity, or extent of.
All is silent on the island now. Games staking all of one's chips, as in poker. How to use all in a sentence. See examples of all used in a sentence.
Putting all of one's available resources into an effort: As you'll have read in our news pages, all has not been well of late. When you talk about all of one thing, you mean the whole thing. The governor mounted a halfhearted campaign for the presidency but didn't.
You use all to refer to a situation or to life in general.
When 'all' is a pronoun, it can come with both singular and plural nouns. When 'all' refers to a group of people/things as a unified whole, it comes with a singular verb, but when 'all' refers to multiple groups.