Synergy rhymes with:
cinergy, cinergy, cenergy, cinergy, energy, allergy, cenergy, cinergy, dramaturgy, energy, entergy, lethargy, liturgy, metallurgy
Synergy sounds like:
samaras, sammarco, samurai's, samurais, sanmark, scammers, scanners, scenarios, sceneries, schoenrock, schooners, schumer's, sconiers, sconyers, secomerica, seigniorage, seminaries, seminars, seniors, seymour's, shamir's, shamrock, shamrock's, shimmers, shinners, shinrikyo, siemers, signers, simmers, sinners, sisneros, skimmers, skinner's, smears, smirk, smirks, smyers, snares, snarski, sneers, somers, somewheres, sommers, sonorous, sonrise, sooner's, sooners, summaries, summarize, summarizes, summer's, summers, summers's, summor's, sumners, sunamerica, sunrise, sunrise's, swimmers, synergies, synergy's