The word "using" is a verb.
A compound word using the word 'small' is smallpox.
using the word cradle
I am not writing a sentence using that word.
I can give you a sentence using the word galaxy.
A reaction that can be described using a word
This is a sentence using the word aviator.
You need an answer using the word plumage.
a sentence using the word endotracheal
The process of forming a word using the letters of another word is called an anagram.
This is a sentence using the word monomer. :P
I am saying a sentence using the word collagen.