Definition: Something that is planned or arranged in advance before it is needed.

Example: Many people choose preneed plans for their funeral arrangements to ease the burden on their families later.

Definition: Happening before something is opened, often in preparation for the event.

Example: The preopening activities included a tour of the new facility.

Definition: This term describes a method of visiting nodes in a tree structure where the root node is processed before its child nodes.

Example: In a preorder traversal, the root is visited first, followed by the left subtree and then the right subtree.

Definition: A type of relation in mathematics where every element is related to itself and if one element is related to a second, and that second is related to a third, then the first is also related to the third.

Example: In set theory, a preorder is used to describe a relationship between elements that satisfies certain properties.

Definition: To place an order for something before it is available or released.

Example: I decided to preorder the new video game so I could get it on the release day.

Definition: Describing something that has been paid for before it is used or received.

Example: I bought a prepaid phone plan to avoid monthly bills.

Definition: To pay for something in advance before receiving the service or product.

Example: I prepaid for my hotel room to ensure I had a place to stay when I arrived.

Definition: To make a payment in advance before receiving a service or product.

Example: I decided to prepay for my hotel room to avoid any issues at check-in.

Definition: A payment made before it is due or before receiving a service or product.

Example: The company requires a prepayment before starting the project.

Definition: Relating to something that occurs before a purchase is made.

Example: The prepurchase inspection helped the buyer make an informed decision.

Definition: To meet the necessary requirements or standards before a certain process or event.

Example: You need to prequalify for the loan before applying.

Definition: Describing a time or situation that happens before an economic decline.

Example: The prerecession period was marked by high consumer spending and investment.

Definition: Happening or existing before someone stops working, usually when they reach a certain age.

Example: Many people start planning their finances during their preretirement years.