1. (

• pyramid

) enlarge one's holdings on an exchange on a continued rise by using paper profits as margin to buy additional amounts ;

2. (

• pyramid ,

) use or deal in (as of stock or commercial transaction) in a pyramid deal ;

3. (

• pyramid

) arrange or build up as if on the base of a pyramid ;

4. (

• pyramid

) increase rapidly and progressively step by step on a broad base ;