Countable Nouns used as Uncountable

Some nouns can be used as both countable (C) and uncountable (U).

In some cases you will see uncountable nouns with a/an , or used in plural and in other - countable nouns used without articles. In both cases you will notice a difference in meaning.

TOMATO

• C: A tomato is a round red fruit eaten as a vegetable, either raw in salads or cooked. (one whole tomato)
• U: I make soup with many ingredients but I always add (some) tomato. (mashed, or sauce)

CHICKEN

• C: Raising chickens is not difficult. (an animal)
• U: We have chicken for lunch. (meat)

EGG

• C:  An ostrich lays the largest eggs of any living bird (one whole egg)
• U: She cooked me some egg and chips. (cooked in food)