hookup

n. system having a number of parts designed to work together; connection, association, partnership; radio or television network

Casual sex refers to certain types of sexual activity outside the context of a romantic relationship. The term is not always used consistently: some use it to refer to any extramarital sex, some use it to refer to sex in a casual relationship, whereas others reserve its use for one-time encounters stands, promiscuity, or to refer to sex in the absence of emotional attachment or love.
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Noun
1. a device providing a connection between a power source and a user; "some campsites have electrical hookups for trailers"
(hypernym) connection, connexion, connector, connecter, connective
(derivation) hook up
2. a system of components assembled together for a particular purpose
(synonym) assemblage
(hypernym) system
(derivation) hook up

Synonyms and related words:
Anschluss, addition, affiliation, agglomeration, agglutination, aggregation, agreement, alignment, alliance, amalgamation, articulation, assimilation, association, blend, blending, bond, bracketing, cabal, cahoots, cartel, centralization, circuit, clustering, coadunation, coalescence, coalition, coast-to-coast hookup, colleagueship, collegialism, collegiality, combination, combine, combo, communication, composition, comradeship, concatenation, concourse, concurrence, confederacy, confederation, confluence, confraternity, congeries, conglomeration, conjugation, conjunction, connection, consolidation, conspiracy, convergence, copartnership, copartnery, copulation, coupling, ecumenism, embodiment, encompassment, enosis, federalization, federation, fellowship, fraternalism, fraternity, fraternization, freemasonry, fusion, gathering, inclusion, incorporation, integration, intercommunication, intercourse, interlinking, joinder, joining, jointure, junction, junta, knotting, league, liaison, linkage, linking, marriage, meeting, meld, melding, merger, merging, net, network, package, package deal, pairing, partnership, radio links, sodality, solidification, sorority, splice, symbiosis, syncretism, syndication, syneresis, synthesis, tie, tie-in, tie-up, togetherness, unification, union, wedding, yoking
  

COLLEGAMENTO. SCHEMA DI MONTAGGIO. RIMANDO FRENI. AGGANCIO. CONNESSIONE