to get in touch with or stay in communication with someone

contact person

to maintain or keep something in existence, such as a relationship, state, or standard

(anatomy) frenulum

strain (of a species)

Whoever started the trouble should be the one to end it; the person responsible for a problem is best suited to solve it.

mutually related or connected with each other

copula (linguistics)

to have a logical, causal, or functional association

to arrest and restrain with chains or shackles

to secure a seatbelt, buckle, or strap for safety or function

to tag an animal for scientific research or to band a bird

to moor

contact details

to link or connect things together physically or abstractly