I have an article to work on
"the article raised a furor among mathematicians"
I just read an "Article". (that is the sentence)^^^
A definite article is the word "the" An indefinite article is the word "a" or "an"
According to the newspaper article, the school system will cut 30 teachers. The officers found a single article of clothing on the bike path.
I am not writing a sentence using that word.
Your question is a sentence and contains the phrase "feature article." (The above is another example of using the phrase in a sentence.)
a sentence using the word endotracheal
This is a sentence using the word aviator.
After reading the article, I like to annotate key points for easier review later.
The word THE is an article, the definite article. (Other articles are A and AN).
A question using the word article would be, Did you find the information in the article to be informative?
I am saying a sentence using the word collagen.