noun / verb
couple
KUP-ul/ˈkʌpl/
Two members joined or considered together.
The couple walks side by side through the park.

Etymology
A 'tie' or 'connection' came to name the two people or things linked by it. The word thus treats two as a connected pair.
In context
not simply a story of a couple that became popular on Tik Tok. Sorry. It is a story of two people who have experienced moments of of joy and moments of pain. So they have experienced marriage
More examples
- She packs a couple of apples for lunch.
- Workers couple the two train cars before departure.
- The animals couple during the spring breeding season.
Forms
couple · couples · coupled · coupling
coupler noun — A device that joins two parts together.