Explore the definition of the word " comment ," as well as its versatile usage, synonyms, examples, etymology, and more. Definition and Use of HTML Comment Tag As the name signifies, HTML developers use comment tags to write a comment within the HTML code; it makes the code easier to understand and improves its readability. Thus, HTML comment tags help the developer to insert comments in between tags. Also, they can use comments to explain their code to help them understand when they edit their source code for future purposes. Advantages of HTML Comment Tag HTML comments help coders to understand ... a criticism or interpretation, often by implication or suggestion: The play is a comment on modern society. a note in explanation, expansion, or criticism of a passage in a book, article, or the like; Definition of comment noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.