Avionics rhymes with:
histrionics, nucleonics, audiotronics, centronics, conics, diasonics, electronics, electronics', endotronics, endotronics', fibronics, flextronics, harmonics, histrionics, ionics, lasersonics, lumonics, microelectronics, mnemonics, nucleonics, onyx, personics, philharmonic's, phonics, photronics, plantronics, respironics, sconnix, siliconix, sonics, tectonics, tektronix, telectronics, telephonics, tonics, vitronics
Avionics sounds like:
abbenhaus, abeyance, abiam's, affines, affining, affymax, afonso, aping, avana's, avanex, avemco, avemco's, avenge, avenue's, avenues, aviano's, avionic, avions, avon's