Greaves rhymes with:
grieves, grieves, reaves, reeves, reeves', retrieves, reves, rieves, shreves, achieves, aviv's, believes, biev's, cheves, cleaves, eaves, eves, gleaves, grieves, heaves, interleaves, leaves, misconceives, misperceives, neaves, neves, peeves, perceives, reaves, receives, recitatives, reeves, reeves', relieves, retrieves, reves, rieves, sheaves, shreves, sleeves, steeves, steve's, steves, teves, thieves, thieves', weaves
Greaves sounds like:
garbacz, garbage, garp's, garps, gearbox, gearboxes, geographic, geographic's, gerbasi, gerbig, gervais, gervase, gervasi, gervasio, giraffes, graboski, grabowski, grabs, grabski, graffius, grapage, grapes, graphic, graphics, graphics', graphs, graves, graves's, gravies, gravois, grbavica, grieves, grievous, griffey's, griffis, gripes, grips, grivas, grooves, groppy's, group's, groupies, groups, groups', grove's, groves, grubaugh, grubbs, grubs, gurevich