What context can I use each word in?
Learn when and how to use these words with these examples!
foci
Example
The foci of the discussion were the new policies and their impact on employees. [foci: noun]
Example
The foci of the parabolic mirror converge at a single point. [foci: plural noun]
Example
The foci of the sentence are the subject and the verb. [foci: plural noun]
core
Example
The core of the issue is the lack of communication between departments. [core: noun]
Example
The apple core contains the seeds of the fruit. [core: noun]
Example
The core of the computer is responsible for processing data and executing instructions. [core: noun]
Good things to know
Which word is more common?
Core is more commonly used than foci in everyday language. Core is versatile and covers a wide range of contexts, while foci is less common and more specialized.
What’s the difference in the tone of formality between foci and core?
While foci is typically associated with a technical and formal tone, core is more versatile and can be employed in both formal and informal contexts.