Ethnics rhymes with:
audiotronics, avionics, beatniks, calisthenics, centronics, chamonix, chetniks, clinic's, clinics, conics, cryogenics, cynics, diasonics, dominic's, ebonics, electronics, electronics', endotronics, endotronics', enix, environics, eugenics, fibronics, flextronics, harmonics, hispanics, histrionics, ionics, kibbutzniks, lasersonics, lumonics, mannix, mechanics, mechanics', microelectronics, minix, minnix, mnemonics, molonicks, mullenix, mullinix, mulnix, munich's, nucleonics, onyx, organics, panic's, panics, penix, pennix, personics, phenix, philharmonic's, phoenix, phonics, photronics, pinnix, plantronics, pyrotechnics, refuseniks, resnick's, respironics, sconnix, siliconix, skolniks, sonics, sputniks, technics, tectonics, tektronix, telectronics, telephonics, tonics, unix, vinick's, vinnick's, vitronics
Ethnics sounds like:
eating, eaton's, eddings, eddins, edens, editing, edition's, editions, ethnic, ethnos, ethnos's, euthanasia, euthanasia's, euthanize, eyewitness, eyewitnesses