Zero Article

Uses

1- With uncountable nouns referring to something in general. Eg.

I like fruit juice, but I prefer wine.

2- With plural countable nouns referring to something in general. Eg. Children love animals.

3- With some phrases relating to places, institutions or situations (lunch, school, home, work, prison). Eg.

He'll be back from lunch at about 2 o'clock.

4- In some two-noun phrases. Eg.

They went dancing night after night.

5- In by expressions related to methods of transport. Eg.

A: Shall we go by bus?

B: No, it'd be quicker to go by plane.