A comment is a social media communication another user employs to reply to a post you have shared. A comment can contain any type of message: it can express agreement or disagreement with your post, ask a question or share additional information regarding your post, or continue the conversation in some other way such as including photographs, clip art, hashtags, music videos, gifs, emojis, etc. Based on the social media platform used, if your post receives a significant number of comments, its position in the site’s newsfeed may be elevated based on the platform’s algorithm.