Coupling
/ˈkʌplɪŋ/
verb
To join (two things) together, or (one thing) to (another).
“I've coupled our system to theirs.”
To join in wedlock; to marry.
To join in sexual intercourse; to copulate.
Synonyms: have sex, make love, bewed, espouse, affix, attach, put together
noun
Act of joining together to form a couple
A device that couples two things together
The degree of reliance between two program modules
Synonyms: dependency