Word
concentration
Phoneticscon·cen·tra·tion, stress on the third syllable
US/ˌkɑnsənˈtɹeɪʃən/
UK/kˌɒnsəntɹˈeɪʃən/
Definitions
01focused attention
B2 · Upper Intermediate Uncountable noun
n. the ability to give all your attention to one single activity or task.
n. the mental faculty of directing one's attention exclusively toward a single object or task.
日本語:集中力※
“It takes a lot of concentration to read in a noisy room.”
“The loud construction work outside the library made it nearly impossible for the students to maintain their concentration during the final exam.”
Pitfall
I lost my concentration on the noise.
I lost my concentration because of the noise.
You have concentration 'on' a task, but you lose it 'because of' or 'due to' a distraction.
Synonyms
Antonyms
02amount in a mixture
B2 · Upper Intermediate Countable noun Science Technical
n. the amount of a substance that is mixed into another substance.
n. the ratio of a solute to the total volume of a solution or mixture.
日本語:濃度※
“The juice has a high concentration of sugar and vitamin C.”
“Environmental scientists measured a dangerous concentration of heavy metals in the river water downstream from the old factory.”
Antonyms
03a large group in one place
C1 · Advanced Countable noun Formal
n. a large number of people or things gathered in the same area.
n. a large number or amount of something gathered in a particular place or area.
日本語:集中※
“There is a heavy concentration of tech companies in this city.”
“The census data revealed a dense concentration of elderly residents in the coastal towns, requiring a shift in local healthcare resources.”
Synonyms
Antonyms
04academic focus
B2 · Upper Intermediate Countable noun American English · Academic
n. a specific subject that a student chooses to focus on during their degree.
n. a specific area of emphasis within a broader field of study at a university.
“She is a history major with a concentration in medieval studies.”
“The university offers a degree in Business Administration with several possible concentrations, including international finance and sustainable management.”
Synonyms
Collocations
Common phrases and expressions where native English speakers use the word “concentration” in context.
Verb
01. improve your concentration
“Regular meditation can help you improve your concentration during long study sessions.”
verb + possessive + noun
02. lose your concentration
“I lost my concentration when the loud music started playing next door.”
verb + possessive + noun
03. require intense concentration
“Solving complex mathematical equations requires intense concentration.”
verb + adj + noun
Adjective
04. high concentration
“Scientists found a high concentration of salt in the lake water.”
adj + noun
05. poor concentration
“A lack of sleep often leads to poor concentration and mistakes at work.”
adj + noun
Noun
06. concentration of power
“The new law prevents a dangerous concentration of power in a single office.”
noun + of + noun
07. lapse of concentration
“A brief lapse of concentration caused the driver to miss the exit.”
noun + of + noun
Preposition
08. with concentration
“The artist painted the portrait with deep concentration, ignoring everything else.”
prep + noun
Real-World Examples
“Bakau is home to one of the largest concentrations of Kanyeleng with about 10 groups, but the tradition extends across The Gambia’s seven regions.” “Unfortunately, they come late .”
The concentration of healthcare capacity in the city thus transforms distance into a factor in mortality.” Etymology
From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentrazione (last quarter of 16th century). Equivalent to concentrate + -ion. By surface analysis, con- + centre + -ate + -ion.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Word family
VERB
NOUN
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Frequency
- Common
- Level
- B2 · Upper IntermediateOxford
- Updated
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「日本語」 data: JMdict (EDRDG), CC BY-SA 4.0