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 complexity
difficulty (complication, complicacy,
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sophistication (intricacy, complexness, complicatedness
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integrated approach
labour intensity (labour input, labor input, labour content
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composite nature
See all synonyms for complexity