Only Articles Consider Content ?

Is only articles consider content? how about other like amazon post,music post,sales page ,etc... ?? thank for giving me answer..

Dictionary .com defines content as something that is to be expressed through some medium, as speech, writing, or any of various arts.

So articles, blog posts, videos, photos, music... any type of media on a website is considered content. Anything on the web is considered content according to the definition above.