portion Definition in the Cambridge English Dictionary
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Definition of “portion” - English Dictionary

Definition of "portion" - American English Dictionary

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portionnoun [C]

 us   /ˈpɔr·ʃən, ˈpoʊr-/
a ​part or ​share of something ​larger: She ​readlarge portions of the ​manuscript and ​offered many ​usefulsuggestions. A portion of my ​paycheck was ​withheld for ​taxes. A portion is also the ​amount of ​foodserved to or ​suitable for a ​person: They ​serve children’s portions at half-price.
(Definition of portion from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "portion" - British English Dictionary

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portionnoun [C]

uk   /ˈpɔː.ʃən/  us   /ˈpɔːr-/
C1 a ​part or ​share of something ​larger: A ​large/​major portion of the company's ​profit goes ​straight back into new ​projects. I ​accept my portion of the ​blame.B2 the ​amount of a ​particularfood that is ​served to one ​person, ​especially in a ​restaurant or a ​shop that ​sellsfoodready to be ​eaten: The portions are very generous in this ​restaurant.
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(Definition of portion from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)

Definition of "portion" - Business English Dictionary

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portionnoun [C]

uk   us   /ˈpɔːʃən/
a ​part or ​share of something larger: A large portion of the company's ​profits is ploughed back into new ​projects. These ​productsaccount for a ​relativelysmall portion of ​sales.
COMMERCE the ​amount of a particular ​food that is enough for one ​person, especially in a ​restaurant, etc.: Bar ​food, lunchtime and evening, comes in generous portions. They ​kept their ​costs down by ​minimizingwaste and having strict portion ​control.
(Definition of portion from the Cambridge Business English Dictionary © Cambridge University Press)
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