🇬🇧 English Vocabulary Crossword Puzzle

15 Across & 15 Down words · Instant green check when a letter is correct

CEFR B2 Biotechnology and CRISPR

Solved: 0 / 30 Words

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➡ Across 15 Words

6. Preposition: CRISPR was discovered ___ bacteria
9. To create or improve, as in ___ new CRISPR therapies
12. The order of nucleotides in DNA
13. The molecule that carries genetic information
14. To receive genetic traits from parents
15. A change in DNA sequence that can cause disease
16. Preposition: gene editing is done ___ a precise mechanism
19. Protection, e.g., bacterial ___ against viruses
20. Preposition: the interaction ___ Cas9 and RNA is crucial
22. Preposition: the edit occurs ___ the cell nucleus
26. A biological catalyst, like Cas9
27. Relating to medical trials, as in ___ trials for CRISPR
28. Medical treatment, e.g., gene ___ for genetic disorders
29. Moral principles guiding gene editing
30. Preposition: ___ the experiment, they used CRISPR

⬇ Down 15 Words

1. Relating to the body's defense system, as in ___ response
2. A revolutionary gene-editing tool
3. Cas9 is a ___ that cuts DNA
4. A group of atoms, like DNA
5. A researcher who uses CRISPR in the lab
7. To find something new, like the CRISPR system
8. Systematic study, e.g., CRISPR ___
10. To change a DNA sequence using CRISPR
11. Microorganisms where CRISPR was first discovered
17. The complete set of genetic material in an organism
18. A research study to test safety and efficacy
21. Conforming to moral standards, as in ___ use of CRISPR
23. To use CRISPR to cure a disease
24. To test for genetic disorders
25. To aim CRISPR at a specific DNA sequence

📚 Study Guide: CEFR B2 (Upper-Intermediate) Vocabulary Focus

This CEFR B2 (Upper-Intermediate) English crossword challenges you with nuanced academic, professional, and analytical English vocabulary around "Biotechnology and CRISPR". Use intersecting Across and Down letters to deduce advanced words from their precise definitions.

1. Active Recall Strategy

Read the Across and Down clues in English first and try to picture the concept before typing. Guessing even 2 or 3 intersecting letters activates deeper lexical memory.

2. Instant Green Orthographic Check

Every correct letter turns green immediately and locks in place. Use these confirmed anchor letters to unlock crossing words without needing a dictionary.

3. Reinforce with Graded Stories

After completing all 30 words, click Next Random B2 Quiz or read our CEFR B2 English Stories to see these words in natural sentences.

🧠 Master English Vocabulary with Interactive CEFR Crossword Puzzles (A1 to B2)

Building a strong, active English vocabulary requires more than memorizing isolated word lists. When you solve an English vocabulary crossword puzzle on StudyWithStory, your brain engages in active retrieval—reading a clear English definition and reconstructing the exact word letter by letter. Each puzzle is structured with 15 Across and 15 Down words (30 target words per quiz) carefully graded to the Common European Framework of Reference for Languages (CEFR).

Why Solving English Crosswords Accelerates Language Fluency

Thinking Directly in English: All clues are written in clear, level-appropriate English definitions without native-language crutches, training you to understand meaning from context.
Spelling & Letter-Pattern Mastery: Intersecting words highlight common English roots, prefixes, vowel combinations, and suffixes while instant green letter validation prevents spelling errors from becoming habits.
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Choose Your CEFR English Crossword Level (A1, A2, B1, B2)

🌱 CEFR A1 · Beginner Crosswords

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Ideal for learners expanding into daily routines, travel & airports, shopping, hobbies, weather, health, and practical communication vocabulary.

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Focused on independent English users practicing career, education, environment, media, relationships, and expressive vocabulary for work and study.

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🎓 CEFR B2 · Upper-Intermediate Crosswords

Built for advanced learners preparing for IELTS, TOEFL, or professional fluency with abstract concepts, business strategy, science, and academic vocabulary.

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Frequently Asked Questions (FAQ)

How do English crossword puzzles improve vocabulary retention?

Crossword puzzles use active recall and orthographic mapping. Instead of passively recognizing a word in a multiple-choice list, your brain retrieves the exact English word from a definition clue and verifies its spelling letter by letter, strengthening long-term memory.

Which CEFR English level (A1, A2, B1, or B2) should I choose?

Choose A1 (Beginner) if you know 500–1,000 basic everyday words; A2 (Elementary) for daily life, travel, and routine conversations; B1 (Intermediate) for work, school, and descriptive topics; or B2 (Upper-Intermediate) for academic, business, and abstract vocabulary.

How does the Next Random Quiz button work?

Clicking the "Next Random Crossword / Quiz" button immediately loads an unseen crossword puzzle from our database matching your selected CEFR level (A1, A2, B1, or B2), allowing you to practice hundreds of unique vocabulary sets without repetition.

What happens when I type a letter in the crossword grid?

Every square uses instant letter validation. As soon as you type the correct letter, the square turns bright green (#22c55e) and locks in place. If you type a wrong letter, no distracting red error is shown—simply type over it or press Backspace.

Can I create a custom English crossword puzzle on my own topic?

Yes! Select your CEFR level (A1–B2), type any educational topic (such as Airport, Kitchen, Space, or Medicine) into the topic box, and click "Create with AI". Our system generates 15 Across and 15 Down words tailored to your topic and saves the puzzle to the community library.

🗂️ Community & AI English Crossword Archive

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