Ostracize rhymes with:
deemphasize, emphasize, fantasize, hypothesize, metastasize, overemphasize, reemphasize, romanticize, synthesize, anglicize, bitesize, capsize, circumcise, criticize, deemphasize, downsize, emphasize, exercise, fantasize, full-size, hypothesize, metastasize, midsize, outsize, overemphasize, politicize, powercise, publicize, reemphasize, romanticize, synthesize
Ostracize sounds like:
oesterreich, oesterreichische, oestreich, osterhaus, osterreichische, ostrich, ostriches, ostroski, ostrosky, ostrowski, ostrowsky, oysters