commons

IPA/ˈkɒm.ənz/
KK[kˈɑmənz]IPA/ˈkɑː.mənz/

commons — adjective

  • commonspositive
  • more commonscomparative
  • most commonssuperlative

1. used, done, or shared by everyone in a group or community, not limited to just o

1.形容詞B1
釋義

used, done, or shared by everyone in a group or community, not limited to just one person

例句

The residents share a common garden where the Watanabe children play every afternoon.

common + noun for shared resources

The building has a common kitchen on the first floor that Ines and the other tenants use for cooking.

common kitchen / common room — shared physical space

同義詞
  • shared

    more concrete; used for physical objects or spaces

  • collective

    more formal; emphasises the group as a whole

  • mutual

    focuses on a reciprocal relationship between two parties

反義詞
  • private

    belonging to one person only

  • individual

    relating to a single person rather than a group

用法筆記

Frequently used before nouns that describe shared spaces (common room, common area) or shared qualities (common interest, common goal).

常見錯誤

This is a common car for the family.
This is the family car.
💡'common' as a shared thing usually pairs with abstract nouns (goal, interest) or specific terms (common room), not everyday objects.

2. happening many times or seen in many places, so that people are familiar with it

2.形容詞A2
釋義

happening many times or seen in many places, so that people are familiar with it

例句

Colds are a common illness among schoolchildren during the winter months.

common illness / common problem — frequent occurrence

It is common for libraries in this city to stay open until nine in the evening.

it is common for + noun + to-infinitive

同義詞
  • frequent

    slightly more formal; emphasises the time interval

  • widespread

    emphasises the large area or number of people affected

  • everyday

    suggests routine ordinariness rather than statistical frequency

反義詞
  • rare

    not happening often

  • uncommon

    the direct opposite in frequency

文法句型

it is common + to-infinitive

it is common + for someone + to-infinitive

常見錯誤

It is common that it rains here in spring.
It is common for it to rain here in spring.' or 'Rain is common here in spring.
💡'it is common + that-clause' is non-standard; use 'common for + noun + to-infinitive' instead.

3. found or existing over a wide area or among a large number of people.

3.形容詞B1
釋義

found or existing over a wide area or among a large number of people.

例句

The use of ride-sharing apps is now common across all age groups in the city.

It is common practice in Japanese schools for students to clean their classrooms daily.

common practice — widespread custom or habit

同義詞
  • widespread

    more emphatic about geographic or social range

  • prevalent

    more formal; used in academic or medical contexts

  • general

    broader; can also mean 'not specific'

反義詞
  • local

    limited to one area

  • rare

    unusual in any area

用法筆記

Contrast with sense 2 (FREQUENT / FAMILIAR): sense 3 describes broad geographic or social reach, while sense 2 describes frequent occurrence. Compare 'a common disease' (affects many people = sense 3) vs 'a common complaint' (heard repeatedly = sense 2).

4. not special, unusual, or from a high social class; like most other people or thi

4.形容詞A2
釋義

not special, unusual, or from a high social class; like most other people or things

例句

The hero of the story is a common person who finds the courage to help others.

Eri comes from a common family with no famous relatives or political connections.

同義詞
  • ordinary

    neutral; widely used without negative tone

  • average

    emphasises being statistically typical

  • plain

    suggests simple appearance, not decorated

反義詞

用法筆記

When describing people, 'common' can sound dismissive. Use 'ordinary' or 'average' in neutral or positive contexts.

常見錯誤

She is very common; she likes reading books.
She is an ordinary person who enjoys reading.
💡using 'common' to describe a person's habits can sound insulting; 'ordinary' is safer.

5. lacking good manners, taste, or education; not refined or polite

5.形容詞B2
釋義

lacking good manners, taste, or education; not refined or polite

例句

The other guests were shocked by his common table manners and loud jokes.

common manners — lack of politeness or refinement

Amani found the comedian's jokes too common and walked out of the show early.

同義詞
  • vulgar

    stronger; suggests offensiveness, especially in sexual or bodily matters

  • crude

    focuses on lack of subtlety or polish

  • coarse

    suggests roughness in speech or behaviour

反義詞
  • refined

    showing good education and manners

  • polite

    socially correct behaviour

用法筆記

This sense is dated and often carries a class-based judgment. It is more common in older British English; modern speakers usually prefer 'vulgar', 'crude', or 'tasteless'.

常見錯誤

He is a common person because he works with his hands.
He works as a carpenter.
💡using 'common' to describe someone's occupation can sound offensive; state the job directly instead.

commons — noun