Comment

Comment is a statement or observation that expresses an opinion, interpretation, or factual note about something. In ordinary discourse, comments clarify or critique a subject, provide context, or express attitudes. They can be brief or extended and may appear in conversation, literature, journalism, or scholarly work.

In editing and annotation, a comment marks a point for reader attention or future revision. They can be used to flag issues, suggest changes, or record explanations. In programming and software development, the analogous idea is a non-executable note attached to code that explains behavior, documents intent, or temporarily disables code.

In computer science, a comment is a portion of source code that is ignored by compilers or interpreters. It documents intent, explains choices, or disables code temporarily. Most languages use specific tokens, such as // or /* */ in C-like languages, # in Python, or <!-- --> in HTML.

Online, a comment is a user-generated response under an article, post, or video. Comments enable discussion but are often moderated to curb harassment, misinformation, or copyright violations.

In linguistics, comment can refer to the part of a sentence that conveys information about the topic, a notion related to topic-comment structure in certain analyses. In editorial practice, a comment is a note added by a reviewer to propose changes or explain issues in a draft.