If you are using the meaning: waste or trash:
We need to reduce rubbish around the world.
If you are using the meaning nonsense:
Son, stop talking such rubbish.
The story he told us was a load of rubbish. There was a pile of rubbish in the corner.
We can put the rubbish in the bin or in the dustbin.
Rubbish is another word for trash or garbage. A sentence using the word rubbish would be, "After the parade, the streets were lined with rubbish."
They were glad to see the dustbins being emptied as there was a lot of rubbish in them.
We have reduced the amount of rubbish we produce by using the recycling service.
We out our organic rubbish in the compost bin and the inorganic rubbish is collected by the City Council.
The teacher had to obliterate the rubbish work
The nouns in the sentence are trash and can.
Have you been to the rubbish optician
Please discard your rubbish in the proper bin.
The noun "rubbish" is an uncountable (mass) noun, which have no plural form. To distinguish quantities of an uncountable noun, they're referred to as a piece of trash or pieces of trash, a pile of trash or piles of trash.
My bicycle is rubbish because it has borken one wheel.