Count (also known as countable) nouns can be counted, which means you can also make them plural. Remember that plural means more than one. For example, the word “teacher.” Can you count teachers? Of course – one teacher, two teachers, three teachers, four teachers. The noun “teacher,” then, is a count noun.
Non-count (or non-countable) nouns can’t be counted, and they’re almost always singular. Remember that singular means one. For example, the word “air.” Can you count air? Of course not – we never say one air, two airs, three airs, etc. So “air” is a non-count noun.
To learn more, watch the following video, then take the quiz to test your knowledge: