Here's what rhymes with estuary.
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belly jelly deli telly allele smelly underbelly vermicelli many heavy ready fairly rarely barely semi petty levy penny heady levee messy jetty teddy bevy breathy dressy faery jenny kepi leggy recce sedgy veggie twenty healthy steady plenty wealthy deadly lengthy gentry fleshy squarely carefree medley sentry sexy sketchy spaghetti sweaty vestry belfry deathly gayety hefty fidgety pebbly tempi testy trendy pesky thready lefty wetly already directly scarcely gently expressly freshly densely frenzy antennae deftly unfairly coquetry fleshly halfpenny machete stealthy sullenly hostelry tensely aplenty libretti effendi preciously especially assembly friendly correctly elementary epilepsy immensely unhealthy excellency unsteady confetti sacredly deviancy maidenly marquetry adeptly ineptly woodenly indirectly intensely intently apoplexy baronetcy catalepsy incorrectly unfriendly confusedly grotesquely complexly reassembly penitently complementary equivalently narcolepsy ambivalently cognoscenti circumspectly