mission
US /ˈmɪʃ.ən/
UK /ˈmɪʃ.ən/

1.
an important assignment carried out for political, religious, or commercial purposes, typically by a group of people in a foreign country
:
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The diplomatic mission aimed to restore peace in the region.
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They embarked on a humanitarian mission to deliver aid.
1.
to send on a mission
:
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The general missioned his best troops to secure the bridge.
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She was missioned to investigate the strange occurrences.