o, e, l, n, p, c, h, r, t, i, u are letters that make 'telephone circuit'
phone, el, hone, telephone, IT, te, IR, Ci, one C, pH, phon, EL, one, on, ci, circuit, NE, LE, Cu, Ho, Ir, Ne, Te are words within 'telephone circuit'
1 possible definitions for 'telephone circuit'
Under this definition, telephone circuit is a noun and has the following properties:
telephone line, phone line, subscriber line, line have the same meaning as 'telephone circuit'
'telephone circuit' can be a type of connector, connecter, connection, connective, connexion.
DSL, hot line, land line, landline, party line, private line, toll line, trunk line, WATS, WATS line, digital subscriber line are types of 'telephone circuit'.