* "The primary function of a heart is to pump blood." (Here, "function" refers to the purpose or role of the heart.)
* "The scientist studied the functions of the human brain." (Here, "functions" refers to the various activities or processes the brain performs.)
* "The company's new software has a wide range of functions." (Here, "functions" refers to the capabilities or features of the software.)
* "The designer emphasized the importance of form and function in architecture." (Here, "function" refers to the practical use or purpose of a building.)
* "The party was a social function to celebrate their anniversary." (Here, "function" refers to a formal gathering or event.)
Let me know if you'd like more examples or have a specific context in mind!