Sing praises to thee, oh Lord! There are many synonyms for the phrase "sing praises". One such synonym is "extol", which means to praise highly. Another synonym is "laud", which means to give praise and commendation. "Acclaim" is another synonym, which means to loudly and enthusiastically praise and approve of someone or something. "Glorify" is yet another synonym, which means to give glory to, or to praise and honor. Other synonyms include "worship", "praise", "adulate", "honor", "revere", and "celebrate". Each of these words convey the idea of giving high praise and admiration to someone or something deserving of it.