Academic Vocabulary for Non-Native Researchers: Read Papers Faster and Write With Confidence
Most international researchers already know their field's terminology. What slows them down is the layer in between: general academic English and the hedging that tells you how strong a claim really is.

- Research vocabulary has three layers: high-frequency English, general academic vocabulary and discipline-specific terms; non-native researchers usually struggle most with the middle layer.
- Coxhead's Academic Word List (570 word families) covers roughly 10% of words in academic texts, a large share for a short list.
- Hedging language such as may suggest, appears to and is associated with signals how certain a claim is; misreading it misreads the finding.
- Learn vocabulary from the papers you actually read: capture words in context, then review them with spaced repetition.
- Building a personal phrase bank of reporting verbs and hedges speeds up writing more than learning new technical terms.
Non-native researchers usually do not need more technical terms. They need the general academic vocabulary that surrounds them (robust, underpin, notwithstanding, account for) and the hedging language that signals how confident a claim is. A practical system is to capture these words and phrases from the papers you already read, review them on a spaced schedule, and build a personal phrase bank you reuse in your own writing.
This guide explains the three layers of research vocabulary, gives tables of the words and hedges that matter most, and offers a weekly workflow that fits around actual research work.
The three layers of research vocabulary
Vocabulary researchers commonly divide the words in academic texts into three groups:
| Layer | Examples | Who usually struggles |
|---|---|---|
| High-frequency English (first ~2,000–3,000 families) | result, show, increase, because, group | Few working researchers |
| General academic vocabulary | derive, robust, framework, inherent, preliminary, warrant | Many non-native researchers |
| Discipline-specific terminology | heteroskedasticity, apoptosis, eigenvalue, morpheme | Newcomers to the field, not experts |
The irony is that the hardest-looking words, the technical ones, are often the easiest for a researcher. You learned them in your first language or in graduate courses, and many are international. The middle layer is different. Words like warrant ("the results warrant further study"), moot or tease apart are common in academic prose but rarely taught, and their meanings are often far from the everyday sense you learned.
General academic vocabulary: the high-payoff layer
Coxhead's Academic Word List (2000) identified 570 word families that appear across disciplines and outside the most frequent 2,000 words. In her corpus they covered about 10% of the running words in academic texts. For a list that small, that is an enormous share, and it is why this layer gives the best return on study time. The Academic Word List guide covers the list in detail.
Beyond single words, academic English depends on multi-word phrases. These are often what makes a sentence feel native:
| Function | Useful phrases |
|---|---|
| Introducing a gap | little is known about; has received scant attention; remains poorly understood |
| Reporting others | X argues / contends / posits / reports / demonstrates that |
| Explaining | can be attributed to; is driven by; accounts for; underpins |
| Contrasting | by contrast; conversely; notwithstanding; in line with / at odds with |
| Limiting scope | beyond the scope of; with the caveat that; to a lesser extent |
Reporting verbs deserve special attention because they carry the author's stance. Shows and demonstrates accept the claim; argues and suggests are neutral; claims and purports imply doubt. Writing "Smith (2019) claims" when you meant "Smith (2019) reports" can read as an unintended criticism.
Hedging language: reading how strong a claim really is
Hedging is the set of words authors use to calibrate certainty. Reviewers expect it, and readers rely on it to separate findings from speculation. Non-native readers often skim past hedges and come away believing a paper proved something it only suggested.
| Strength | Typical language | Example |
|---|---|---|
| Strong | demonstrates, establishes, clearly shows | "These data demonstrate that the effect is dose-dependent." |
| Moderate | indicates, suggests, is consistent with | "The results suggest a role for temperature." |
| Weak | may, might, could, appears to, it is possible that | "This may partly explain the discrepancy." |
| Correlational | is associated with, is linked to, co-occurs with | "Higher income was associated with lower risk." (not caused) |
| Speculative | we speculate, one possibility is, tentatively | "We tentatively propose a two-stage mechanism." |
The correlational row is the one most often misread. "Associated with" is a deliberate choice not to claim causation. When you write, using the same calibrated language makes your papers sound like they belong in your field.
Discipline terminology: learn it from your own field's papers
For the third layer, generic lists are useless, because each field has its own vocabulary and its own meanings for common words. Significant means statistically significant in quantitative work and simply important elsewhere. Model, power, bias, agent and culture change meaning across disciplines. The only reliable source is the literature you work with. Watch especially for familiar words with field-specific senses: these are where a dictionary definition misleads you.
Writing: from phrase bank to your own voice
Reading and writing need vocabulary in different directions. For reading, you need to recognize a word quickly; for writing, you need it to come to mind when you have a meaning to express. That is why reviewing in the meaning-to-phrase direction ("How do I say that a result partly explains something?") matters for researchers who publish. It also helps to note the collocations around each phrase: results are consistent with a hypothesis, findings shed light on a mechanism, and a study addresses or fills a gap. Small collocation errors (do a research, make an analysis instead of conduct research, carry out an analysis) are often what reviewers notice first.
A method: capture, review, reuse
- Read with a capture habit. When a word or phrase slows you down, save it with the sentence. Do not look up every unknown word on a first read; mark it, keep reading, and check it at the end of the section. Often context resolves it, which is the skill described in how to use context clues.
- Sort what you saved. Once a week, divide captures into single words, phrases, and field-specific senses. Discard anything you will never meet again.
- Review on a schedule. Spaced review keeps words from fading between papers. Use flashcards in the direction you need: word to meaning for reading, meaning to phrase for writing.
- Reuse in writing. Add the best phrases to a personal phrase bank organized by function (gap, method, result, limitation). Consult it when drafting. This is the sentence mining method applied to academic prose.
A sample weekly workflow
| Day | Task | Time |
|---|---|---|
| Mon | Read one full paper in your field. Capture academic words, hedges and field senses. | Reading time + 5 min |
| Tue | Review saved words (recall mode or flashcards). | 10 min |
| Wed | Read the introduction and discussion of two more papers; focus on reporting verbs and gap phrases. | 30 min |
| Thu | Review. Add five phrases to your phrase bank under the right function. | 15 min |
| Fri | Writing practice: rewrite one paragraph of your own draft using two hedges and two new phrases. | 20 min |
| Weekend | Optional: read one paper outside your field to meet academic vocabulary in new contexts. | Optional |
Where Wordie helps, and where other tools are better
Wordie is a Chrome extension, so it helps with papers you read in the browser: HTML full texts on publisher sites, preprint servers, PubMed Central, review blogs and university pages. Select a word and you see an English definition, part of speech and synonyms; save it, and it is highlighted on every later page where it appears. For the middle layer of academic vocabulary this repetition across papers is valuable, because those words recur across your reading but are easy to skim past.
Recall mode tests you on saved words with a simple mastery score, the dashboard shows the last seven days of activity, and you can export to CSV or JSON to move words into Anki or a phrase bank. Everything stays in your browser's local storage, which matters if you read unpublished or sensitive material and prefer not to send it to a cloud service.
Honest limits:
- PDFs in a separate reader. Many researchers read PDFs in a reference manager or desktop reader. Wordie does not work there. A reference manager's highlights plus a weekly transfer into flashcards may suit you better.
- Translation. Wordie gives English definitions and does not translate. If you need a bilingual gloss for a hard term, a translation tool or a bilingual subject dictionary is better.
- Field-specific senses. Definitions come from a general English dictionary, so they will not always give your discipline's technical sense. Note that sense yourself.
- Large-scale scheduling. For thousands of cards, Anki's full scheduler is the stronger choice.
The bottom line
Non-native researchers gain the most from general academic words, multi-word phrases and hedging language, not from more technical terms. Capture them from the papers you already read, review them on a spaced schedule, and reuse the best ones through a phrase bank. A few minutes a day, attached to reading you were doing anyway, compounds into faster reading and more natural academic writing. If you also work in clinical research, see the medical vocabulary guide.
Sources: Coxhead, A. (2000), "A new academic word list", TESOL Quarterly; Hyland, K. (1998), Hedging in Scientific Research Articles, John Benjamins; Nation, I.S.P. (2006), "How large a vocabulary is needed for reading and listening?", Canadian Modern Language Review; Cepeda, N.J. et al. (2008), "Spacing effects in learning", Psychological Science.
Frequently asked questions
How can non-native researchers improve their academic vocabulary?
Focus on general academic words and phrases rather than your field's terminology, which you probably know already. Capture unfamiliar words and phrases from papers you read, review them on a spaced schedule, and reuse useful phrases in your own writing.
What is hedging in academic writing?
Hedging is language that limits the strength of a claim, such as may, suggests, appears to or is likely to. It lets authors report results accurately without overstating them, and reviewers expect it.
What is the Academic Word List?
The Academic Word List, published by Averil Coxhead in 2000, is a list of 570 word families that appear frequently across many academic disciplines but are not among the most common 2,000 English words. Examples include analyze, significant and derive.
How long does it take to read research papers comfortably in English?
It depends on your starting level and how much you read. Researchers who read several papers a week and actively capture and review unfamiliar vocabulary usually notice faster, less effortful reading within a few months.
Is Wordie useful for reading papers?
Wordie can help with papers you read in a Chromium browser, such as HTML versions on publisher sites or preprint servers: select a word to see an English definition and save it, and saved words are highlighted on later pages. It does not translate and is not a specialist subject dictionary.
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