Is toothpaste a countable or uncountable noun?

Answer 1

The noun 'toothpaste' is an uncountable (mass) noun, a word for a substance.

Units of toothpaste are expressed by using a noun counter(called a partitive noun), a noun that quantifies an uncountable noun; for example, a tube of toothpaste, an ounce of toothpaste, a glob of toothpaste.

Toothpaste is not countable in itself, but tubes of toothpaste are. If you were in a factory, making toothpaste, you might have a vat of toothpaste which would be measured in terms of gallons. So, toothpaste would be measured, rather than counted. You would not ask how many toothpaste do you have, but how much. You could, however, ask how many tubes of toothpaste you have. Tubes are countable.

Answer 2

Yes, toothbrush is a countable noun. You may have one toothbrush, two toothbrushes, or any number of toothbrushes you like.

Answer 3

Uncountable noun

Answer 4

Yes