As a noun:
* General: "My partner and I are going on vacation next month."
* Business: "We're looking for a partner to invest in our new project."
* Dance: "He asked me to be his partner for the waltz."
* Crime: "The police are searching for the partner in the robbery."
As a verb:
* In a relationship: "We partnered up after meeting at a friend's party."
* In business: "The two companies partnered to develop a new product."
* In a project: "We partnered with a local charity to organize a fundraiser."
In different contexts:
* Romantic: "My partner makes me laugh every day."
* Business: "Our partner company provided valuable expertise."
* Legal: "The partners in the firm are responsible for its success."
* Dance: "They were a perfect partner on the dance floor."
Remember that the meaning of "partner" can change depending on the context.