The helmet protects the motorcyclist from head injuries, and the visor prevents bugs from getting into the motorcyclist's eyes.
"The knight lowered the visor on his helmet as he prepared for battle".
you should use a visor when its sunny out, the sun is in your eyes, or your face is sunburned.
The word 'visor' has no antonym. A visor is that part of a helmet which covers the face, or some other type of protection for the face or eyes. It has no opposite, any more than the word 'helmet' has an opposite.
Can you use the word concluding in a sentence? Done.
You can use the word Truss in a sentence like this.
Just use it! Or do you mean, can you use the word beheld in a sentence.
How do you use the word decibel in a sentence?What is decibel used for?
Since that is not a word I would not attempt to use it in a sentence.
You just did use the word colonize in a sentence.
You can use the word Terrorist in a sentence as " Muslims are not terrorist ".
use the word puzzlement in a sentence
the word rag in a sentence