Word choice

You have a lot of muscle.
That's a lot of weight on your back.

AnonymousAnd what are they in the sentence (adjective or noun)?

They are uncountable nouns.

Mister MicawberThey are uncountable nouns.

Are they uncountable nouns in these sentences?

Because I know you can say: The body has different muscles; Muscles are formed of fibers.

AnonymousAre they uncountable nouns in these sentences

Do you have trouble reading my posts?

Mister MicawberDo you have trouble reading my posts?

No. You your writing is very clear. May be my question was not clear. I know you said they are uncountable nouns, but I meant to say: Are they uncountable nouns in this case and can be uncountable in other sentences?

Sorry for not being so precise. I though you would understand what I wrote.

Anonymous Are they uncountable nouns in this case and can be uncountable in other sentences?

Ah, I see. Yes, that is right. Most nouns, in fact, can be used both countably and uncountably. The dictionaries indicate which they usually are.

Mister MicawberThe dictionaries indicate which they usually are.

Sorry, what do you mean by this sentence? Do you mean a dictionary indicates what a noun usually is, although it can be both?

My dictionary does not show that. I will have to get another one.

AnonymousMy dictionary does not show that. I will have to get another one.

Try the range of dictionaries at www.onelook.com.