Seniority rhymes with:
dority, inferiority, superiority, asperity, austerity, celebrity, charity, darity, dority, garity, garrity, gerety, gerrity, harrity, immaturity, inferiority, insecurity, insularity, severity, superiority, supermajority, unpopularity, varity, vulgarity
Seniority sounds like:
sehnert, semerad, semrad, shimmered, shumard, simard, simmered, simmert, siniard, sinyard, smart, smarted, smartt, smarty, smeared, snared, sneered, snort, snorted, sunward, swinehart