you can use the word across in a sentence by saying
i went across the river in a tube.
we went across a river
I swam across the river yesterday.
I was on holiday and i sailed across the sea
They trudged across the torrid sands of the Sahara.
The lights were strung across the hallway.
The caribou ran across the field.
The body by then partially dismembered was dragged across a field.
I walked proudly across the stage with my diploma in hand.
The word "notoriety" is the noun form of the word "notorious. " An example of a sentence using the word "notoriety" is "The notoriety of the gunman had spread across three states. "
Write a sentence that makes sense and try putting the word across in the sentence.
The comet was seen to streak across the evening sky.
The metorites showered across the sky- it truly was an amazing sight!