a part, especially a share, (to be) given when something is distributed; a quantity (of any kind of food) as served in a restaurant
share, cut, ration
Cases of word usage
1) (a portion of) a kind of light-coloured beer (ale)
2) (a portion of) a kind of strong alcoholic drink (brandy)
3) (a portion of) burning gas; a strong feeling (flame)
4) (a portion of) a kind of colourless alcoholic drink (gin)
5) a portion of minced or chopped meat made into a round flat cake and fried; a bread roll filled with this (hamburger)
6) (a portion of) semi-solid food flavoured with fruit and often eaten with ice-cream (jelly)
7) a length or portion of time, e.g. hours, days, months and years; a flow of blood from a woman each month; a full stop (period)
8) (a portion of) a kind of alcoholic drink made from sugar-cane juice (rum)
9) of Scotland; (a portion of) Scotch whisky (scotch)
10) a thing, event, of little value or importance; a small amount of money; (a portion of) a sweet dish made of cake with jam, jelly, cream etc; to treat a person, feeling lightly or insincerely (trifle)