Fourfold: meaning, definitions and examples

This term is often used in more formal or technical contexts to indicate that something has increased or multiplied by four. It is common in academic, scientific, and financial texts.

• The company's profits have increased fourfold over the last decade.
• Our research showed a fourfold increase in the number of cases.

This term is often used interchangeably with 'fourfold' but can be seen in both casual and formal contexts. It is also frequently used to emphasize the dramatic nature of an increase.

• The city’s population is expected to quadruple in the next 50 years.
• They managed to quadruple their investment in just five years.

This phrase is more casual and commonly used in everyday speech to simply mean 'four instances' or 'multiplied by four'. It is less formal than 'fourfold' and can be used in various situations.

• I have visited this museum four times already.
• The recipe says you need to use four times the amount of water.

This term is frequently used in more formal or technical contexts, such as finance, statistics, or academic writing. It emphasizes a multiplication by four.

• The company's profits increased fourfold over the past year.
• There was a fourfold rise in the number of cases reported.

This phrase is commonly used in everyday conversation and informal writing. It is straightforward and easy to understand, signifying something happens or exists four instances.

• I called you four times, but you didn't answer.
• She can lift weights that are four times heavier than before.

Often employed in scientific, mathematical, or financial contexts, this term means to multiply something by four. It tends to sound more technical.

• The recipe calls for us to quadruple the amount of sugar.
• Their investment has quadrupled over the last decade.