- Social media has created hundreds of new English words and given old words new meanings (feed, story, viral).
- Internet abbreviations (LOL, TBH, DM, TL;DR) are now part of everyday spoken and written English.
- LinkedIn uses more formal English than other platforms — avoid slang in professional messages.
- Negative online behaviour has its own specific vocabulary: trolling, ghosting, doomscrolling, catfishing.
Social media is one of the richest sources of contemporary English for ESL learners. Platforms like Instagram, X (formerly Twitter), TikTok, and LinkedIn expose you to natural, current language — slang, abbreviations, idioms, and new words that emerge and spread faster than dictionaries can track them. This guide organises social media English into clear categories so you can understand and use it confidently.
1. Core Social Media Vocabulary
These words and phrases are used across most platforms and are essential for understanding social media conversations in English:
- Interaction verbs: post, share, like, comment, tag, mention, reply, repost, retweet, save, bookmark, subscribe, follow, unfollow, mute, block
- Content nouns: post, story, reel, thread, tweet, caption, hashtag, mention, link, profile, bio, handle, feed, page, channel
- Performance metrics: follower count, reach, impressions, engagement rate, click-through rate (CTR), views, shares, likes
- Key concepts: algorithm, trend, viral, trending, going viral, niche, community, audience
2. Internet Abbreviations and Slang
These abbreviations appear constantly in social media comments, DMs, and even everyday spoken English:
- LOL — laugh out loud (now often used as a filler, not always indicating laughter)
- OMG — oh my god (surprise or strong emotion)
- TBH — to be honest
- IMO / IMHO — in my opinion / in my humble opinion
- BTW — by the way
- TL;DR — too long; didn't read (a summary of a long text)
- IRL — in real life
- NGL — not gonna lie
- SMH — shaking my head (disapproval)
- DM — direct message
- AFK — away from keyboard
- FWIW — for what it's worth
Internet abbreviations and slang are appropriate in informal conversations, comments, and text messages. They are not appropriate in business emails, academic writing, or professional LinkedIn messages. Knowing when NOT to use them is as important as knowing what they mean. See our guide to Professional Email Vocabulary for the formal alternative.
3. Content Types and Engagement
Understanding content vocabulary is essential for discussing social media in English:
- Story — temporary content that disappears after 24 hours
- Reel / Short — short vertical video (Instagram Reels, YouTube Shorts, TikTok)
- Live stream — real-time video broadcast
- Thread — a series of connected posts or replies
- Carousel — a series of swipeable images or slides in one post
- Meme — a humorous image, video, or text that spreads rapidly online
- Collab — a collaboration between two creators
- Going viral — spreading rapidly to a massive audience
4. Influencer and Creator Economy Vocabulary
- Influencer — a person with a large, engaged audience who promotes products or ideas
- Micro-influencer — a smaller influencer with a niche, highly engaged audience
- Content creator — anyone who produces content for social media platforms
- Brand ambassador — someone who officially represents a brand
- Sponsored post — paid content promoting a product or service (must be disclosed)
- Affiliate link — a unique link earning commission when someone makes a purchase through it
- Engagement rate — the percentage of followers who interact with a post
- Monetise — to earn money from content
5. Negative Online Behaviour
- Troll — someone who posts inflammatory or provocative content to provoke reactions
- Ghosting — suddenly stopping all communication without explanation
- Catfishing — creating a fake online identity to deceive others
- Doomscrolling — obsessively scrolling through negative news
- Cancel culture — publicly boycotting a person after they do something controversial
- Cyberbullying — bullying that takes place online
- Phishing — sending fake messages to steal personal information
- Spam — unsolicited, irrelevant, or repetitive messages
Practise this vocabulary with Flash Cards and test yourself with the Quiz on LexFizz. For more informal English, see our guide to Common English Idioms.
6. Professional Social Media (LinkedIn)
LinkedIn uses significantly more formal English than other platforms. Key vocabulary:
- Connection — a person in your LinkedIn network
- Endorse — to publicly confirm someone's skill
- Recommendation — a written testimonial from a connection
- InMail — LinkedIn's internal messaging system
- Thought leadership — establishing yourself as an expert in your field through content
- Open to work — a feature indicating you are job-searching
Practise Social Media Vocabulary
Drill internet words and phrases with free Flash Cards and Quiz exercises.
Start Flash Cards →7. Frequently Asked Questions
What is the most important social media vocabulary in English?
Core social media vocabulary: post (noun/verb), share, like, follow, unfollow, comment, tag, mention (@name), hashtag (#), trend, viral, algorithm, feed, story, reel, bio, handle, DM (direct message), thread, reply, repost/retweet, engage, influencer, content creator, subscriber, follower count, reach, impressions, engagement rate.
What does "going viral" mean in English?
"Going viral" means a piece of content spreads rapidly across the internet, being shared by enormous numbers of people in a short time. It comes from the idea of a virus spreading from person to person. Example: "Her cat video went viral overnight and got 10 million views." The term is widely used in marketing, journalism, and everyday conversation.
What are common internet abbreviations used in English?
Common internet abbreviations: LOL (laugh out loud), OMG (oh my god), TBH (to be honest), IMO/IMHO (in my opinion), BTW (by the way), FYI (for your information), DM (direct message), TL;DR (too long; didn't read), IRL (in real life), NGL (not gonna lie), SMH (shaking my head), AFK (away from keyboard).
What is an influencer in English?
An influencer is a person who has built a large, engaged audience on social media and uses that influence to promote products, ideas, or lifestyles — often in partnership with brands (paid promotion). Related terms: micro-influencer, content creator, brand ambassador, sponsored post, affiliate link, collaboration (collab), creator economy.
What does "algorithm" mean in social media English?
The "algorithm" is the automated system a platform uses to decide what content to show each user — based on their behaviour, preferences, and engagement history. Example: "I posted at the right time and the algorithm picked it up." / "The algorithm favours video content over static images."
What English words are used for negative online behaviour?
Negative online behaviour vocabulary: troll (someone who posts deliberately provocative content), cyberbullying, hate speech, spam, phishing, catfish (pretending to be someone you're not), ghosting (suddenly stopping all communication), doomscrolling (scrolling through negative news obsessively), cancel culture (publicly boycotting someone), doxxing (publishing private information).
What is a hashtag and how do you use it in English?
A hashtag is the # symbol followed by a word or phrase (no spaces) used to categorise content: #EnglishLearning, #WordOfTheDay. Hashtags are clickable — clicking one shows all posts using that tag. Best practices: use relevant hashtags, mix popular and niche ones, capitalise each word for readability (#LearnEnglishNow).
What vocabulary do I need for professional LinkedIn communication?
LinkedIn vocabulary: connection, network, endorse, recommend, InMail, job posting, recruiter, open to work, headline, summary, thought leadership, post, article, newsletter. LinkedIn uses more formal language than other platforms — avoid slang and abbreviations in connection requests and messages.
What are English words for different types of online content?
Content types: post (general update), reel/short (short vertical video), story (temporary content, 24 hours), live stream (real-time video), thread (series of connected posts), podcast, newsletter, infographic, carousel (series of images), meme (humorous image with text), tutorial/how-to, review, unboxing video, Q&A, collab.
How has social media changed the English language?
Social media has introduced hundreds of new words and changed existing ones. New verbs from nouns: "to Google", "to DM", "to friend/unfriend". New meanings: "feed" (content stream), "story" (temporary post), "viral" (spreading rapidly). New concepts: "ghosting", "catfishing", "doomscrolling". Abbreviations entered mainstream speech: "LOL", "OMG". Hashtags became part of conversation (#Blessed).