Primaries rhymes with:
actuaries, adversaries, aviaries, beneficiaries, beneficiary's, blackberries, blueberries, cadbury's, canterbury's, capillaries, carberry's, cemeteries, commentaries, commissaries, confectionaries, contemporaries, corollaries, cranberries, dictionaries, dignitaries, emissaries, estuaries, february's, fiduciaries, functionaries, gooseberries, intermediaries, itineraries, january's, legionaries, libraries, library's, luminaries, mercenaries, militaries, military's, miniseries, missionaries, monasteries, newbury's, obituaries, ordinaries, paramilitaries, pillsbury's, preliminaries, proprietaries, raspberries, reactionaries, revolutionaries, sanctuaries, secondaries, secretaries, secretaries', secretary's, seminaries, strawberries, subsidiaries, subsidiaries', subsidiary's, sudbury's, temporaries, thornberry's, thornberrys, thornbury's, thornburys, tributaries
Primaries sounds like:
premark, premier's, premieres, premiers, primark, primerica, primerica's, primers, primrose, primroses