Synonyms for main
primary (principal, ,
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key (central, big, grand
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core (staple, cardinal, basic
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chief (head, senior, superior
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master
dominant
foremost
premier
predominant
base
trunk
primal
principal part
See all synonyms for mainSynonyms for duty
obligation (responsibility, commitment, burden
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charge (tariff, due, fee
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task (job, office, assignment
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levy (impost, tax, toll
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collection
tour of duty
See all synonyms for duty