What rhymes with earth - 1 syllable
 berth
 birth
 dearth
 firth
 fuerth
 furth
 gerth
 girth
 hearth
 hirth
 kerth
 kurth
 mirth
 perth
 werth
 wirth
 worth
 wurth

What rhymes with earth
 rebirth
 unearth
 wentworth

What rhymes with earth
 down-to-earth