Tra từ pyramid - Từ điển WordNet v3.1

I - noun

1. a polyhedron having a polygonal base and triangular sides with a common vertex
• Derivationally related forms:
pyramidal, pyramidical
• Hypernyms:
polyhedron
2. (stock market) a series of transactions in which the speculator increases his holdings by using the rising market value of those holdings as margin for further purchases
• Topics:
stock exchange, stock market, securities market
• Hypernyms:
speculation, venture

II - verb

1. enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts (Freq. 1)
• Topics:
investing, investment
• Hypernyms:
profit, gain, benefit
• Verb Frames:
- Somebody ----s
2. use or deal in (as of stock or commercial transaction) in a pyramid deal
• Topics:
crime, offense, criminal offense, criminal offence, offence, law-breaking
• Hypernyms:
deal, sell, trade
• Verb Frames:
- Somebody ----s something
3. arrange or build up as if on the base of a pyramid
• Derivationally related forms:
Pyramid
• Hypernyms:
arrange, set up
• Verb Frames:
- Somebody ----s something
4. increase rapidly and progressively step by step on a broad base
• Hypernyms:
increase
• Verb Frames:
- Something ----s