Is corn countable?
If I see a corn in the supermarket and ask?
It is a corn
I think I'm confused what is corn. Is it the little yellow things that are corns or that whole thing is corn?
I also heard "ear " and "cob" . How are these word combine with the word corn and what do ear and cob mean?
There are two meanings for "corn". 1 chiefly Brit. the chief cereal crop of a district, especially (in England) wheat or (in Scotland) oats. 2 N. Amer. & Austral./NZ maize, the ears of which are corn on the cob. Corn is uncountable in both cases. You would ask for "two cobs".
The ears of all corn are the seed-bearing heads.