The fundamental difference between a retweet and a re-tweet is more than just a hyphen. If X (formerly Twitter) had a dictionary, they would have completely different definitions too. Here's the difference between the two terms.
✅ How to Retweet on Twitter 🔴
A retweet is an integral X feature. It was once jargon used by X users and is now a permanent action in the social media platform's interface.
Retweeting is the act of reposting something someone else tweets. Before X built the functionality into its interface, users would manually retweet by adding the letters "RT" to their message.
The reason someone retweets is to share something that they think is worth sharing with their followers. It could be an article or a good quote. The retweet always includes the @username of the person who originally tweeted it, so that the credits are not lost. If the message is shortened to 280 characters, as is often necessary, the retweeter can change their RT to a MT, which stands for "modified tweet."