- 1one part of something larger a substantial/significant portion of the population Only a small portion of the budget is spent on books. The central portion of the bridge collapsed. You give this portion of the ticket to the inspector and keep the other. She could recite large portions of Shakespeare.
- 2an amount of food that is large enough for one person a generous portion of meat She cut the cake into six small portions. You should eat several portions of fruit a day. Do you serve children's portions? This particular type of fish has less than 200 calories per portion.
- 3[usually singular] a part of something that is shared with other people synonym share You must accept a portion of the blame for this crisis.
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