Lumbra rhymes with:
penumbra, umbra, alhambra, ambra, cambra, dambra, giambra, hombre, penumbra, sambre, umbra
Lumbra sounds like:
laimbeer, lambreau, lambro, lamphear, lamphere, lamphier, lamprey, lanfear, lanphear, lanpher, lanphere, lanphier, lehenbauer, leinweber, limber, lineberry, lineweaver, lumbar, lumber, lumper, lumpur