S: (n) critical mass (critical_mass%1:07:01::) (the minimum amount (of something) required to start or maintain a venture) "the battle for the computer market has now reached critical mass"; "there is now a critical mass of successful women to take the lead"; "they sold the business because it lacked critical mass"
S: (n) quantity (quantity%1:07:00::) (an adequate or large amount) "he had a quantity of ammunition"
S: (n) quantity (quantity%1:09:01::) (the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable)