English Vocabulary · Grade 11 Live Review Preview
11th Grade Vocabulary Words
Eleventh-grade readers work across complex arguments, literary forms, scientific models, quantitative reasoning, civic institutions, social analysis, and precise academic prose. This level emphasizes disciplinary meanings, source evaluation, rhetorical and linguistic analysis, transparent morphology, and the careful use of context and reference tools when a word has several possible senses.
This independently authored 800-word beta curriculum is arranged in twenty-three pages of up to thirty-five words. Pages containing words 1–500 include five cloze questions drawn only from that enhanced range; words 501–800 remain fully visible and editable as list pages while expanded practice is developed. Every row includes an editable subject-field label and a conservative word-study note about transparent affixes, compound structure, capitalization, or dictionary base forms. The cited sources calibrate range and difficulty only; all learner-facing definitions, examples, quizzes, and descriptions are original KSSR copy.
Please note: the vocabulary lists for grades 9~11 have been selected to ensure no overlap with the previous grade level. If the words are too specialized or difficult for you, please go back to grade levels 4~8 and review the words on those pages.
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| # | Word | Details | Meaning | Sample sentence |
|---|---|---|---|---|
| 351 | fusion reactor | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: fusion + reactor. Study the complete expression as one field-specific unit. | រ៉េអាក់ទ័រ fusion | The experimental fusion reactor confines hot plasma with magnetic fields. |
| 352 | luminosity | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | ពន្លឺ | A blue giant has far greater luminosity than the Sun. |
| 353 | apparent magnitude | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: apparent + magnitude. Study the complete expression as one field-specific unit. | ទំហំជាក់ស្តែង | Distance affects a star's apparent magnitude. |
| 354 | absolute magnitude | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: absolute + magnitude. Study the complete expression as one field-specific unit. | ទំហំដាច់ខាត | Absolute magnitude allows fair comparison of stars' intrinsic brightness. |
| 355 | spectral class | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: spectral + class. Study the complete expression as one field-specific unit. | ថ្នាក់ spectral | The Sun belongs to spectral class G. |
| 356 | Hertzsprung-Russell diagram | proper noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: Hertzsprung + Russell + diagram. Study the complete expression as one field-specific unit. | ដ្យាក្រាម Hertzsprung-Russell | The Hertzsprung-Russell diagram places main-sequence stars along a diagonal band. |
| 357 | supernova | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: supernova is the dictionary headword; compare its inflected or derived forms in context. | ផ្កាយដែលផ្ទុះយ៉ាងធំ | The supernova briefly outshone its host galaxy. |
| 358 | pulsar | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: pulsar is the dictionary headword; compare its inflected or derived forms in context. | pulsar | The pulsar sends a radio pulse past Earth every second. |
| 359 | event horizon | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: event + horizon. Study the complete expression as one field-specific unit. | ផ្តេកព្រឹត្តិការណ៍ | Light crossing the event horizon cannot return to a distant observer. |
| 360 | escape velocity | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: escape + velocity. Study the complete expression as one field-specific unit. | ល្បឿនរត់គេចខ្លួន | A rocket must reach Earth's escape velocity to depart permanently. |
| 361 | spacetime | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: spacetime is the dictionary headword; compare its inflected or derived forms in context. | ពេលវេលាអវកាស | Mass curves spacetime around a star. |
| 362 | gravitational lensing | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: gravitational + lensing. Study the complete expression as one field-specific unit. | កែវថតទំនាញ | Gravitational lensing produced multiple images of the distant galaxy. |
| 363 | dark matter | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: dark + matter. Study the complete expression as one field-specific unit. | 1. រូបធាតុងងឹត 2. អង្គធាតុងងឹត | Galaxy rotation suggests the presence of dark matter. |
| 364 | dark energy | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: dark + energy. Study the complete expression as one field-specific unit. | ថាមពលងងឹត | Measurements of distant supernovae support the existence of dark energy. |
| 365 | cosmic inflation | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: cosmic + inflation. Study the complete expression as one field-specific unit. | អតិផរណាលោហធាតុ | Cosmic inflation helps explain the universe's large-scale uniformity. |
| 366 | blueshift | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: blueshift is the dictionary headword; compare its inflected or derived forms in context. | blueshift | The galaxy's blueshift shows that it is moving toward us. |
| 367 | transiting exoplanet | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: transiting + exoplanet. Study the complete expression as one field-specific unit. | exoplanet ឆ្លងកាត់ | The transiting exoplanet causes a small periodic dip in starlight. |
| 368 | spectroscopy | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: spectroscopy is the dictionary headword; compare its inflected or derived forms in context. | វិសាលគម | Spectroscopy revealed sodium in the star's atmosphere. |
| 369 | climate sensitivity | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: climate + sensitivity. Study the complete expression as one field-specific unit. | ភាពប្រែប្រួលអាកាសធាតុ | Climate sensitivity estimates how strongly warming follows doubled carbon dioxide. |
| 370 | carbon sequestration | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: carbon + sequestration. Study the complete expression as one field-specific unit. | ការប្រមូលកាបូន | Forest restoration can contribute to carbon sequestration. |
| 371 | renewable energy | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: renewable + energy. Study the complete expression as one field-specific unit. | ថាមពលកកើតឡើងវិញ។ | Wind and sunlight provide renewable energy without burning fuel. |
| 372 | grid storage | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: grid + storage. Study the complete expression as one field-specific unit. | ការផ្ទុកក្រឡាចត្រង្គ | Battery grid storage saves midday solar power for evening use. |
| 373 | photovoltaic cell | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: photovoltaic + cell. Study the complete expression as one field-specific unit. | កោសិកា photovoltaic | Each photovoltaic cell produces current when sunlight frees charge carriers. |
| 374 | wind turbine | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: wind + turbine. Study the complete expression as one field-specific unit. | ទួរប៊ីនខ្យល់ | The wind turbine generates more power during steady coastal winds. |
| 375 | geothermal energy | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: geothermal + energy. Study the complete expression as one field-specific unit. | ថាមពលកំដៅផែនដី | The town uses geothermal energy for district heating. |
| 376 | energy density | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: energy + density. Study the complete expression as one field-specific unit. | ដង់ស៊ីតេថាមពល | Jet fuel has greater energy density by mass than a typical battery. |
| 377 | load-bearing | adjective StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: load + bearing. Study the complete expression as one field-specific unit. | បន្ទុក | Engineers reinforced the load-bearing column. |
| 378 | yield strength | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: yield + strength. Study the complete expression as one field-specific unit. | កម្លាំងទិន្នផល | The beam must remain below the steel's yield strength. |
| 379 | fatigue | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Base-form focus: fatigue is the dictionary headword; compare its inflected or derived forms in context. | អស់កម្លាំង | Microscopic cracks revealed metal fatigue in the wing. |
| 380 | ductility | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Suffix focus: -ity commonly forms a noun naming a quality, state, or condition. | ភាពធន់ | Copper's ductility allows it to be drawn into thin wire. |
| 381 | brittleness | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Suffix focus: -ness forms a noun naming a quality or state. | ភាពផុយស្រួយ | Cold temperatures increased the alloy's brittleness. |
| 382 | stress concentration | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: stress + concentration. Study the complete expression as one field-specific unit. | ការផ្តោតអារម្មណ៍ស្ត្រេស | A rounded corner reduces stress concentration in the bracket. |
| 383 | finite element analysis | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: finite + element + analysis. Study the complete expression as one field-specific unit. | ការវិភាគធាតុកំណត់ | Finite element analysis predicted where the bridge deck would bend most. |
| 384 | reference frame | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: reference + frame. Study the complete expression as one field-specific unit. | ស៊ុមយោង | The ball's velocity differs between the train's reference frame and the platform's. |
| 385 | inertial frame | noun StudyField: Grade 11 physics, astronomy, climate, and engineering term Word study: Term structure: inertial + frame. Study the complete expression as one field-specific unit. | ស៊ុម inertial | Newton's first law holds directly in an inertial frame. |
Vocabulary reading and practice
Page 11 vocabulary review
Review five selected words from page 11.
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.
Sources and curriculum references
These references guide selection and calibration. Definitions, sample sentences, readings, questions, and teaching notes are independently written and reviewed.
- Common Core: Language Standards for Grades 11–12
- OpenStax: Writing Guide with Handbook
- OpenStax: Anatomy and Physiology 2e
- OpenStax: Physics
- OpenStax: Calculus Volume 1
- OpenStax: American Government 3e
- OpenStax: Principles of Economics 3e
- OpenStax: Introduction to Sociology 3e
- 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
- The Princeton Review, Word Smart: Building an Educated Vocabulary (Privately Owned KSSR Materials; bibliographic calibration only).