words ending in onics

2 Syllables: bionics
conics
ionics
onyx
phonics
sonics
tonic's
tonics
3 Syllables: conicus
embryonics
harmonics
histrionics
ionicus
laconics
mnemonic's
mnemonics
nucleonics
radionics
sardonyx
tectonics
4 Syllables: demonicus
draconicus
electronics
harmonices
harmonicus
histrionicus
hydroponics
laconicus
macaronics
philharmonic's
philharmonics
polyphonics
sardonicous
sardonicus
stereophonics
supersonics
telephonics
ultrasonics
5 Syllables: architectonics
stereophonicus

Now you can make multisyllabic rhymes in the new rhymit app :)