The invisible friend of the four year old girl is a figment of the girl's imagination.
The monster in her closet turned out to be a figment of her imagination.
Scrooge said,"Oh, humbug!" when he thought what he was seeing was just a figment of his imagination.
How about figment? You might also separate the word into pig and ment and rhyme the first half and then use "meant" for the second half.
The word you are looking for is not "fragment" but "figment". A figment of your imagination is something that doesn't exist but you think it does. In other words, its a hallucination.
You can use the word Truss in a sentence like this.
Can you use the word concluding in a sentence? Done.
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?
You can use the word Terrorist in a sentence as " Muslims are not terrorist ".
You just did use the word colonize in a sentence.
Since that is not a word I would not attempt to use it in a sentence.
use the word puzzlement in a sentence