Common words that rhyme with observe include preserve, serve, verve, love, derive, leave, give, grieve, precursive, alternative, negative, oppressive, affirmative, relative and unresponsive.
Preserve cord blood for future.
He decided to major in zoology after visiting a nature reserve.
They serve pasta; besides, seafood.
I love you more each passing day".
Oh, you have a new haircut.
They derive pleasure from helping others.