Questions about phrase "the amount of"

[alkaspeltzar]

When using the phrase "the amount of", what does it mean?

For example "The amount of water is 5 gallons", seems here to be refering to the measure of water, how much as to ask.

But when used as "a large amount of water is present" seems here to be more like saying alot of water, more generic.

Reminds me how "a number" is generic, but "the number" is specific to the value.

Can someone please clear up...THANKS

[JohnParis]

I think you've pretty much got it, my friend. Your question contained a very good answer.

[alkaspeltzar]

JohnParis,

So that is right? When stated using the phrase "the amount of" , the speaker is interested in the exact measure of the something in the topic.

But just like other words and phrases, it can be used to mean other things. That is why at times when stated "an amount of", it could be used more generally to just mean 'some' or even if talking about money to mean 'total cash' or something like that.

The meaning is dependent on context correct?

[JohnParis]

Correct. You've nailed it.