Africa's desert region contains marginal land.
I am not writing a sentence using that word.
A Polar Bear is found in the Arctic region, which has a polar climate.
No, the word "region" does not need to be capitalized in a sentence unless it is the first word of the sentence or part of a proper noun (e.g. "Pacific Northwest region").
a sentence using the word endotracheal
This is a sentence using the word aviator.
The climate of the region was temperate. The climate of Florida is hot at this time of year.
I am saying a sentence using the word collagen.
this is a sentence using the word armchair.
Please type a sentence using the word assertion.
Need a sentence using the word crater?
Can you give sentence by using abyss word?