X (Twitter) Engagement Glossary
Likes, replies, reposts, bookmarks, dwell time, conversation rate — the metrics the algorithm reads and the actions it rewards.
17 terms in this category
Bookmark
Saving a tweet privately for later reference, without notifying the author.
Click-through rate (CTR)
The percentage of impressions that resulted in a click on the tweet (link, profile, or detail expansion).
Conversation rate
The percentage of impressions that resulted in a reply — the highest-signal engagement metric.
Engagement rate
Total engagements (likes + replies + reposts + bookmarks) divided by impressions, expressed as a percentage.
Impressions
The number of times your tweet was loaded into a user's feed or shown on a profile.
Like
The lowest-friction engagement signal on X — tapping the heart icon under a tweet.
Main character (of X)
The person whose tweet, situation, or behavior the entire app is talking about on a given day — usually unwanted.
Mention
Including @handle in a tweet, which notifies that user and links to their profile.
Quote tweet
Embedding another tweet inside your own with added commentary.
Ratio (to be ratio'd)
When a tweet receives more replies than likes — typically meaning the audience disagrees strongly or is actively dunking on the post.
Reach
The number of unique users who saw a tweet (not the total times it was shown).
Reply
A tweet posted in response to another tweet, threading under the original.
Repost
Sharing another user's tweet to your own followers without commentary. Formerly called "retweet."
Retweet
The original name for resharing another user's tweet to your own followers — officially renamed "repost" in 2023 but still used universally in everyday conversation.
Save rate
The percentage of impressions that resulted in a bookmark — a strong indicator of reference-worthy content.
Subtweet
A tweet that talks about a specific person or situation without naming them directly — vague enough to be deniable but clear enough that the target knows.
Viral
A tweet that exceeds typical reach by several orders of magnitude, usually driven by reposts and quote-tweets compounding.
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