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In computer and internet terms, Twitter (now known as X) is a social media platform for microblogging, where users send short messages called tweets. Key terms include: follow, to subscribe to another user's posts; retweet, to share another user's tweet with your followers; hashtag (#), which categorizes tweets; and direct message (DM), a private message between users.

Core functions

Tweet: A short message, originally limited to 140 characters but now up to 280, posted to the platform.

Follow: To subscribe to another user's tweets, causing them to appear in your main feed.

Home feed: The primary page where a user sees tweets from people they follow, as well as other content like ads.

Interactions

Retweet: To share another user's tweet with your own followers.

Quote tweet: A retweet that includes your own comment.

Reply: To respond directly to an existing tweet.

Mention: To include another user's @username in a tweet or reply, which notifies them.

Hashtag: A keyword or phrase preceded by a # symbol (e.g., #tech) that categorizes the tweet and makes it searchable by others interested in that topic.