Synonyms of phew

1 Syllable
well, pooh, gosh, oop, ugh, ah, um, er, whew, ums, ers, huh, phooey, psst
2 Syllables
hooray, oh's, welled, egad, ahem, golly, jeepers, welling
3 Syllables
gesundheit
4 Syllables
interjections, interjection