He practiced the excellent manners of a gentleman, and behaved in public like a nobleman of a bygone era.
That pencil is a memento from a bygone era.
Our attic is more like a garret filled with old things of bygone days.
Anything in the past has bygone.Bygone almost means the same thing as Gone by.
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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