English Vocabulary · Cross-exam Academic English Beta
TOEFL · TOEIC · IELTS · IGCSE Vocabulary
This 1,600-word beta set supports learners preparing for TOEFL, TOEIC, IELTS, and Cambridge IGCSE English. Official specimen papers supply the primary occurrence evidence, so words shared across several programmes rise toward the beginning of the list. Overlap with school-grade, SAT, and GRE vocabulary is intentional because the same academic English serves several learning pathways.
A limited public specimen corpus does not contain 1,600 distinct, reliable teaching headwords. The remaining places therefore bridge from KSSR’s audited Grade 4–9 curricula using general English frequency and a fixed balance of nouns, adjectives, verbs, and adverbs. Every row reuses a reviewed meaning, complete example sentence, word-study note, and dictionary-style equivalents in all launch languages. The first release includes five cloze questions per page; reading workshops will be added only after their English passages and translations are separately reviewed.
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| # | Word | Details | Meaning | Sample sentence |
|---|---|---|---|---|
| 1261 | interference | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ence commonly forms a noun naming an action, quality, or state. | 1. អន្តរាគមន៍ 2. ការជ្រៀតជ្រែក | Interference creates alternating bright and dark bands on the screen. |
| 1262 | cluster | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: cluster is the dictionary headword; compare its inflected or derived forms in context. | ចង្កោម | A cluster near the upper right appears in the scatter plot. |
| 1263 | projection | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -tion commonly forms a noun naming an action, process, or result. | ការបញ្ចាំង | Every map projection distorts some combination of area, shape, or distance. |
| 1264 | exposition | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ition commonly forms a noun naming an action, process, or result. | ការបង្ហាញ | The exposition explains why the family moved to the island. |
| 1265 | conditional | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: conditional is the dictionary headword; compare its inflected or derived forms in context. | តាមលក្ខខណ្ឌ | The conditional sentence explains what will happen if the temperature falls. |
| 1266 | squared | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: squared is the dictionary headword; compare its inflected or derived forms in context. | ការ៉េ | Five squared equals twenty-five. |
| 1267 | soar | verb StudyField: Cross-exam academic and functional English Word study: Base-form focus: soar is the dictionary headword; compare its inflected or derived forms in context. | ហក់ឡើង | The eagle began to soar above the canyon. |
| 1268 | gloomy | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: gloomy is the dictionary headword; compare its inflected or derived forms in context. | 1. ស្រអាប់ 2. អាប់រស្មី | The gray sky gave the empty street a gloomy appearance. |
| 1269 | evade | verb StudyField: Cross-exam academic and functional English Word study: Base-form focus: evade is the dictionary headword; compare its inflected or derived forms in context. | គេច | The quick rabbit tried to evade the circling hawk. |
| 1270 | magma | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: magma is the dictionary headword; compare its inflected or derived forms in context. | ម៉ាក់ម៉ា | Pressure forced magma upward through a crack. |
| 1271 | carefree | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: carefree is the dictionary headword; compare its inflected or derived forms in context. | មិនខ្វល់ | The children enjoyed a carefree afternoon beside the lake. |
| 1272 | structural | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: structural is the dictionary headword; compare its inflected or derived forms in context. | ជីវវិទ្យា) ទំរង់ | The earthquake caused structural damage to two columns. |
| 1273 | consecutive | adjective StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency. | ជាប់គ្នា។ | The river exceeded flood level for three consecutive days. |
| 1274 | advisory | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: advisory is the dictionary headword; compare its inflected or derived forms in context. | advisory board council — ក្រុមប្រឹក្សា | The weather agency issued an advisory notice about dangerous heat. |
| 1275 | doctrine | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: doctrine is the dictionary headword; compare its inflected or derived forms in context. | 1. លទ្ធិ 2. គោលលទ្ធិ | The movement's doctrine emphasized nonviolent resistance. |
| 1276 | defendant | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: defendant is the dictionary headword; compare its inflected or derived forms in context. | ចុងចោទ | The defendant entered a plea at the hearing. |
| 1277 | neglected | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: neglected is the dictionary headword; compare its inflected or derived forms in context. | ធ្វេសប្រហែស | Volunteers repaired the neglected playground. |
| 1278 | apparatus | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: apparatus is the dictionary headword; compare its inflected or derived forms in context. | ឧបករណ៍ | The filtration apparatus includes a funnel, paper, and collection flask. |
| 1279 | reflective | adjective StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ive commonly forms an adjective meaning having a quality or tendency. | ឆ្លុះ | Her reflective journal considers what she learned from the failed trial. |
| 1280 | constituent | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: constituent is the dictionary headword; compare its inflected or derived forms in context. | ភាគៗ | Each constituent may write to the senator about the proposed law. |
| 1281 | hearty | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: hearty is the dictionary headword; compare its inflected or derived forms in context. | ពិរោះ | The hikers ate a hearty stew after the long climb. |
| 1282 | underlying | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: underlying is the dictionary headword; compare its inflected or derived forms in context. | 1. ជាទំរ 2. ទ្រ | The physician treated the underlying infection rather than only the fever. |
| 1283 | compliance | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ance commonly forms a noun naming an action, quality, or state. | ការអនុលោមតាម | The audit confirmed compliance with workplace safety law. |
| 1284 | succession | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -sion commonly forms a noun naming an action, process, or result. | ការបន្តពូជ | After the lava cools, ecological succession begins with lichens. |
| 1285 | memoir | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: memoir is the dictionary headword; compare its inflected or derived forms in context. | អនុស្សាវរីយ៍ | In her memoir, the pilot recalls learning to navigate by the stars. |
| 1286 | continuity | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | ការបន្ត | Shared symbols create continuity between the novel's three sections. |
| 1287 | algebra | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: algebra is the dictionary headword; compare its inflected or derived forms in context. | ពីជគណិត | Algebra can express the same pattern for any input. |
| 1288 | parameter | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: parameter is the dictionary headword; compare its inflected or derived forms in context. | ប៉ារ៉ាម៉ែត្រ | The program lets users change each parameter in the model. |
| 1289 | latitude | noun StudyField: Cross-exam academic and functional English Word study: Base-form focus: latitude is the dictionary headword; compare its inflected or derived forms in context. | រយៈទទឹង | Places at high latitude often have cold winters. |
| 1290 | adhere | verb StudyField: Cross-exam academic and functional English Word study: Base-form focus: adhere is the dictionary headword; compare its inflected or derived forms in context. | ប្រកាន់ខ្ជាប់ | The label will adhere better to a clean surface. |
| 1291 | scarcity | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | ភាពខ្វះខាត | Water scarcity forced the town to limit outdoor use. |
| 1292 | opaque | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: opaque is the dictionary headword; compare its inflected or derived forms in context. | ស្រអាប់ | The opaque wall blocked all light from the next room. |
| 1293 | liability | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | បំណុល | The company accepted liability for the defective product. |
| 1294 | calculation | noun StudyField: Cross-exam academic and functional English Word study: Suffix focus: -ation commonly forms a noun naming an action, process, or result. | គណនា | Check the calculation by estimating the result first. |
| 1295 | biased | adjective StudyField: Cross-exam academic and functional English Word study: Base-form focus: biased is the dictionary headword; compare its inflected or derived forms in context. | លំអៀង | A biased question can distort survey results. |
Vocabulary reading and practice
Page 37 vocabulary review
Review five selected words from page 37.
English reading
Reading passage is being prepared.
Khmer translation
A reviewed translation is not available for this passage yet.
Vocabulary quiz
Choose the dictionary equivalent for each of 5 selected words.
Vocabulary chart page
This page focuses on the word chart. Reading passages appear once in each three-page group, while cloze quizzes remain in the established enhanced range for this level.
About this cross-exam English set
TOEFL, TOEIC, IELTS, and Cambridge IGCSE English use different formats, but all require learners to understand precise vocabulary in context. TOEFL and IELTS emphasize academic reading and communication; TOEIC emphasizes workplace and everyday communication; IGCSE English asks students to interpret, analyze, and communicate through school-level texts and tasks. This combined set concentrates on useful language that can transfer across those pathways.
The ordering is evidence-led rather than alphabetical. Words found in official public specimen materials—especially words occurring across more than one programme—receive the strongest ranking. Because a limited specimen corpus cannot provide 1,600 distinct reliable teaching headwords, the remainder is transparently bridged from KSSR’s audited Grade 4–9 vocabulary using general English frequency and a fixed part-of-speech balance. This is an independent study resource, not an official product of any testing organization.
A limited public specimen corpus does not contain 1,600 distinct, reliable teaching headwords. The remaining places therefore bridge from KSSR’s audited Grade 4–9 curricula using general English frequency and a fixed balance of nouns, adjectives, verbs, and adverbs. Every row reuses a reviewed meaning, complete example sentence, word-study note, and dictionary-style equivalents in all launch languages. The first release includes five cloze questions per page; reading workshops will be added only after their English passages and translations are separately reviewed.
Sources and curriculum references
These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.
- ETS: TOEFL iBT Full-Length Practice Test 1
- ETS: TOEFL iBT Full-Length Practice Test 2
- ETS: TOEIC Listening and Reading Sample Test
- IELTS: Academic Reading Sample Tasks 2023
- Cambridge IGCSE First Language English 0500/01 2027 Specimen Paper
- Cambridge IGCSE First Language English 0500/01 2027 Specimen Insert
- Cambridge IGCSE English as a Second Language 0510/01 2019 Specimen Paper
- WikDict downloadable bilingual dictionaries
- Kaikki.org / Wiktextract machine-readable Wiktionary data
- Language-Learning-decks public flashcard datasets
- SBBIC English-to-Khmer Dictionary
- English–Khmer Dictionary Dataset (machine-generated Khmer fallback; human review required)
- PanLex meanings snapshot (direct CC0 gap candidates; human review required)
- Cambridge bilingual dictionaries (individual editorial sense checks)
- Collins English–Hindi Dictionary (individual editorial checks)
- Hindwi and Rekhta dictionaries (individual Hindi/Urdu checks)
- National Institute of Korean Language: Basic Korean Dictionary
- JMdict/EDRDG Japanese dictionary project
- CC-CEDICT Chinese dictionary project
- VDict Vietnamese Dictionary (individual editorial check)
- Google Translate (machine-assisted lesson-reading draft; fluent review required)
- Kuperman et al.: Age-of-acquisition ratings for 30,000 English words