Olivia BennettMerriam-Webster officially expanded its dictionary by 1,400 new words and definitions on September 15, 2026 — including "looksmaxxing," "crashout," "Rickroll," "meme coin," and "vibe coding." The announcement, one of the largest single-update word drops in recent years, reflects how dramatically digital culture and Gen Alpha slang have reshaped American English. For students, parents, and educators, the update raises an urgent and often overlooked question: now that slang is "official," how do you know when it actually belongs in academic writing?
What Merriam-Webster Just Added to the English Language
On September 15, 2026, Merriam-Webster announced that it had added more than 1,400 words and definitions to its flagship dictionary — one of the most sweeping updates in its recent history. The new entries span internet culture, cryptocurrency, food trends, mental health, and lifestyle, offering a snapshot of how American English is evolving in real time.
Notable additions include:
- Looksmaxxing — the practice of maximizing one's physical attractiveness, typically discussed in online communities
- Crashout — slang for losing composure or behaving erratically under stress
- Rickroll — the act of tricking someone into clicking a link that leads to Rick Astley's 1987 song "Never Gonna Give You Up"
- Meme coin — a cryptocurrency inspired by internet memes, often with no stated utility or financial fundamentals
- Vibe coding — a programming style driven by intuition and AI assistance rather than structured planning
- Cuffing season — the period in autumn when single people seek short-term romantic partners for the colder months
- Parasocial — describing one-sided emotional bonds with public figures or media personalities
- Shishito, bao, and chili crisp — food terms reflecting the growing mainstream presence of Asian cuisines in American kitchens
For a word to earn its place in Merriam-Webster, it must demonstrate widespread, sustained use across diverse written sources over time. The September 2026 update signals that many terms once confined to TikTok comments and Discord servers have crossed into mainstream literacy — at least by one measure.
Why Dictionary Updates Matter Beyond Trivia
The addition of 1,400 words is more than a curiosity or a trending headline. It reflects a genuine tension that students, teachers, and tutors navigate every day: the gap between how Americans speak informally and what counts as appropriate written language in academic or professional settings.
Merriam-Webster's inclusion of a word does not mean that word is suitable for a college application essay, a business report, or a research paper. Dictionaries record language as it is used — they do not prescribe where or how a word belongs. A term like "crashout" may now appear in Merriam-Webster, but using it in a formal writing context still signals a register mismatch to any admissions officer or employer reading the document.
This distinction — between descriptive legitimacy (the word is real and widely used) and prescriptive appropriateness (the word fits this context) — is one of the most important and least-taught concepts in American secondary education. According to language instruction research, fewer than 30% of high school students report receiving explicit instruction on register differentiation — the ability to shift vocabulary and tone based on context and audience.
The result: students who have grown up immersed in digital language often carry informal vocabulary into formal writing, not out of carelessness, but because no one has clearly explained when that vocabulary crosses a line.
The Expert Angle: Private Tutors and Register Fluency
Language educators have long recognized that vocabulary instruction is not simply about learning what words mean — it is about learning what words do in context. The Merriam-Webster update, precisely because of its scale and its emphasis on internet slang and Gen Alpha vocabulary, creates a practical teaching moment that private tutors are uniquely positioned to address.
"When a student sees 'looksmaxxing' in the dictionary, their reasonable conclusion is that it's a real English word — and they're right," explained one academic English tutor with over a decade of experience coaching students through college application essays. "What they need to understand is that the dictionary is not a style guide. Formal writing has its own standards, and those standards don't change just because Merriam-Webster caught up with TikTok."
Private tutors who specialize in writing instruction, SAT/ACT verbal preparation, and college admissions essays are seeing an uptick in exactly this kind of confusion. Students who are fluent communicators in digital spaces — articulate, creative, and verbally confident — sometimes struggle to translate that fluency into the register expected by academic institutions, because no one has given them a clear map of the difference.
This is not a failure of intelligence. It is a gap in instruction. And it is precisely the kind of gap that one-on-one academic support is designed to close.
When Dictionary-Official Slang Trips Up a College Application: A Concrete Scenario
Consider a high school senior — let's call her Maya — applying to competitive universities in October 2026. Maya is a strong communicator: articulate on social media, confident in class discussions, and genuinely passionate about her topic. Her college essay is about resilience — specifically, how she learned to manage stress after a difficult sophomore year.
In her first draft, Maya describes how she nearly "crashed out" during midterms, refers to a friend who helped her "glow up" her study habits, and closes with a reflection on how she learned not to become "parasocial" with her own anxiety. All three of those terms — "crashout," "glow up," and "parasocial" — now appear in Merriam-Webster as of September 2026. Maya has every reason to believe she's using real English words correctly.
But if Maya submits that essay unrevised, she risks two things:
If all 3 informal terms remain in the final essay, an admissions reader may conclude that the student lacks awareness of formal register — a signal that could lower her evaluation for "maturity" and "communication skills" by admissions rubrics that explicitly value those markers.
If a tutor reviews her draft before submission, each informal term can be replaced with a precise equivalent: "nearly gave up" instead of "crashed out," "overhauled" instead of "glowed up," "overly absorbed in" instead of "parasocial." The meaning is preserved; the register becomes appropriate for the audience.
The stakes here are measurable. Among students applying to colleges ranked in the top 100 nationally, admissions counselors at several institutions have reported that writing quality — not just content — is one of three primary differentiators when evaluating academically similar applicants. A single register error won't sink an application, but a pattern of informal vocabulary in a formal document sends an unintended message about the student's awareness of audience.
This is not about purging slang from students' vocabularies. It is about equipping them with the fluency to know which register to use, and when. That is a teachable skill — and one that a private tutor who specializes in academic writing can typically address in 3 to 5 focused sessions.
What Students and Parents Should Do Before Application Season
The Merriam-Webster update comes just as high school juniors and seniors are beginning their college application cycles. It is a good moment to take practical stock:
Review your student's recent formal writing. Look for terms that feel native to digital communication — not just the specific words in this update, but any vocabulary that belongs to an informal register. Read the writing aloud: does it sound like a conversation, or like a considered document?
Introduce register as a concept, not a correction. Telling a student that their word choice is "wrong" often shuts down the conversation. Framing it as register fluency — the same way a professional speaker adjusts their vocabulary for different audiences — positions it as a skill to develop, not a mistake to apologize for.
Seek targeted academic writing support. A tutor who specializes in college essay preparation, SAT verbal coaching, or formal writing instruction can run a register audit of existing work, identify patterns, and build vocabulary flexibility over a focused engagement. This is distinct from general tutoring — it requires someone with specific expertise in academic language conventions.
Use the Merriam-Webster update as a conversation starter. "Looksmaxxing is now in the dictionary — do you know when it would be appropriate to use it in writing?" is a more engaging question than another lecture about tone. The update gives students a concrete, timely peg for a conversation about how language works.
For students who are strong thinkers but still developing their formal writing register, the September 2026 Merriam-Webster update is less a threat than it is a useful mirror: it shows how much of the vocabulary they already use fluently, and how much work remains to map that fluency onto the contexts where it will be evaluated.
Connect With a Writing or Academic Tutor
The gap between informal fluency and formal writing register is one of the most common and most actionable challenges in secondary education today. An experienced private tutor — whether focused on college essay coaching, test prep writing, or general academic English — can assess exactly where a student stands and build the skills to close the gap before it matters most.
ExpertZoom connects students and parents with vetted academic tutors across the United States who specialize in exactly these challenges. Whether your student needs a one-time essay review or an ongoing writing program ahead of application season, the right expert is available now.
Note: This article provides general educational guidance. For personalized academic support, consult a qualified tutor or education specialist.
