Mel·ba 
(mĕlbə), Dame Nellie Originally Helen Porter Mitchell. 1861-1931.
(mĕlbə), Dame Nellie Originally Helen Porter Mitchell. 1861-1931. Australian soprano primarily with London's Covent Garden (1888-1926) and New York City's Metropolitan Opera (1893-1910).
Dame Nellie Melba- onto
- onto-
- on toes
- ontogenesis
- ontogenetic
- ontogenetically
- ontogenic
- ontogenically
- ontogeny
- ontological
- ontologically
- ontologist
- ontology
- on top
- on top of
- on top of the world
- on trial
- on/under pain of
- on/upon(one's) hands
- on/upon (one's) hands
- on/upon request
- on/upon the heels of
- on uppers
- onus
- on view