Words That Rhyme With "Observe" :

1 syllable:

carve, curve, derv, Harve, mirv, nerve, perv, serve, starve, swerve, varve, verve

2 syllables:

conserve, deserve, disserve, incurve, innerve, preserve, recurve, reserve, subserve, unnerve

3 syllables:

underserve, unreserve