Nectar rhymes with:
connecter, connector, collector, connecter, connector, decter, defector, derecktor, detector, director, ector, erector, fechter, hector, injector, inspector, lecter, lector, objector, prechter, projector, protector, rector, reflector, schechter, schecter, schlechter, sector, specter, spector, spectre, spektr, transtector, vector, waechter, wechter
Nectar sounds like:
nastier, negotiator, nester, nestor, neumeister, newscaster, nicastro, nichter, nicotera, nicotra, nighter, non-sequitor, nostra