expulsion

expulsion — noun

1. a punishment or order that removes someone from a group, institution, or nation

1.名詞B2
釋義

a punishment or order that removes someone from a group, institution, or nation after they have broken important rules

例句

After the bullying incident, the school board voted for his immediate expulsion.

expulsion from [institution] after misconduct

The government ordered the expulsion of Defne for activities that threatened national security.

同義詞
  • deportation

    specifically sending a foreign national out of a country by government order; narrower than expulsion

  • dismissal

    removing someone from a job or position; less severe and more about employment than membership

  • ejection

    more physical and immediate removal from a place rather than an official process

反義詞

文法句型

expulsion from [institution/country/organization]

face expulsion

order the expulsion of [person]

用法筆記

Often followed by 'from' to specify the institution or body. Countable when referring to specific incidents ('three expulsions this year'); uncountable when referring to the concept or punishment in general ('Expulsion is the most serious penalty the school can impose.').

常見錯誤

❌The student faced exclusion from school for cheating.
✅The student faced expulsion from school for cheating.
💡'Exclusion' means being left out or not allowed in; 'expulsion' means being forced to leave after already being a member.
❌The government ordered his deportation from the political party.
✅The government ordered his expulsion from the political party.
💡'Deportation' is only used for sending a foreign national out of a country; 'expulsion' is used for organizations and groups.

2. the forcing of a fluid or gas out of an organism or a vessel through internal pr

2.名詞C1
釋義

the forcing of a fluid or gas out of an organism or a vessel through internal pressure

例句

The medicine helps with the expulsion of fluid from the patient's swollen lungs.

expulsion of [substance] from [body part]

The volcano's expulsion of hot gas and ash darkened the sky for three days.

同義詞
  • discharge

    more general term for any release of substance; less technical and more common in everyday language

  • emission

    often used for gases released into the air; common in environmental contexts

  • ejection

    can include solids and is often more forceful or sudden

反義詞
  • intake

    the process of taking a substance in

  • absorption

    taking in and retaining a substance

文法句型

expulsion of [substance]

expulsion from [body/container]

the expulsion of [gas/liquid]

用法筆記

Primarily uncountable in medical and scientific writing. When countable, it refers to distinct instances or types of discharge ('repeated expulsions of gas from the chamber'). Not used for solid objects — use 'ejection' or 'expelling' instead.

常見錯誤

❌The body's expulsion of food through vomiting.
✅The body's expulsion of stomach contents through vomiting.
💡'Expulsion' is used for gases and liquids, not solid food. Use 'expelling' or 'ejection' for solids.