Answer:
1 show, sign 2. critical 3 definitions 4 circular
For something to be "no longer under consideration" means that its not up to discuss. like theres nothing more to talk about
commas, dashes, or parentheses
Nonessential appositive phrases can be separated from the rest of a sentence in three ways—with commas, with dashes, or with parentheses. Let’s look at example sentences that essentially mean the same thing:
The best pet in the world, a dog, will always be known as “man’s best friend.”
The best pet in the world—a dog—will always be known as “man’s best friend.”
The best pet in the world (a dog) will always be known as “man’s best friend.”
The English spelling system is difficult because we use many of the same words and slightly alter them and give them different meaning and we have so many different phonics, adverbs, nouns, and many more that is really confusing if you don't learn it from a young age.