The bitterness of the aloe plant is widely regarded.
Bitterness is a noun.
Remembering the bitterness of the coffee, she added a surplus of sugar.
The noun 'bitterness' is an abstract noun as a word for a feeling of deep anger and ill-will; a feeling of resentment; a word for an emotion.The noun 'bitterness' is a concrete noun as a word for a harsh, unpleasant taste.
The first alternative "... hold on to ..." is better for several reasons: 1. The verb is basically "to hold on" - even though it's usually "to" something 2. The word "onto" usually refers to a destination for movement (no movement in this sentence) 3. We could also say, "Why do you hold on, despite her kindness, to that bitterness?"
Can you use the word concluding in a sentence? Done.
You can use the word Truss in a sentence like this.
Anger, bitterness, and tempered.
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 ".