What context can I use each word in?
Learn when and how to use these words with these examples!
dual
Example
The phone has a dual camera system. [dual: adjective]
Example
He has dual citizenship in both Canada and the United States. [dual: adjective]
Example
The issue has dual implications for both the economy and the environment. [dual: adjective]
twofold
Example
The benefits of exercise are twofold: physical and mental. [twofold: adjective]
Example
The company's profits have increased twofold since last year. [twofold: adverb]
Example
The problem has a twofold solution: increase revenue and reduce expenses. [twofold: adjective]
Good things to know
Which word is more common?
Dual is less common than twofold in everyday language. Dual is often used in technical or scientific contexts, while twofold is more versatile and can be used in various contexts.
What’s the difference in the tone of formality between dual and twofold?
Dual is more commonly used in technical or scientific contexts, making it more formal than twofold. However, twofold can also be used in formal contexts, depending on the context and tone of the sentence.