/ ˈgɑːdə; NAmE ˈgɑːrdə/ noun
1.
the Garda [ U ] the police force of the Republic of Ireland
2.
[ C ] (also garda ) ( pl. gardai / ˈgɑːdiː; NAmE ˈgɑːrdiː/) a police officer of the Republic of Ireland
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WORD ORIGIN
from Irish Garda Síochána Civic Guard.