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Definition mission in British English

mission noun

noun
/ˈmɪʃ(ə)n/
1

an important piece of work that a person or group of people has to do for a government or large organization, especially one that involves travel

Example

The President leaves for a trade mission to the Middle East.

Example

a cultural/fact-finding/rescue mission

Synonyms and related words
1.1

a group of people sent to do an important piece of work

Example

The UN peacekeeping mission has arrived in the capital.

Synonyms and related words
Example

He was shot down during a mission over the Balkans.

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3

a flight into space

Example

the possibility of a manned mission to Mars

Synonyms and related words
4

an aim that is very important to a person or organization

Example

Helping homeless people was Gina's mission in life.

Example

It is the international community's mission to end terrorism.

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5

the activity of people who are sent to a place by a religious organization to teach people there about a particular religion

Example

the Catholic mission in Papua New Guinea

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5.1

the building used by people who do the work of a mission

Synonyms and related words
Definition mission in British English