The definition for incumbent is "Necessary as a duty or responsibility." Used in a sentence: It was incumbent on Jack to attend his father's retirement party. The definition for salvage is "to save from ruin.", the definition for mundane is "Practical, ordinary.", and the definition for placebo is "An inactive substance used in medical testing."

The definition for drub is "To defeat decisively." Used in a sentence: The powerful young boxer drubbed the longtime champion. The definition for diffident is "lacking self–confidence.", the definition for manifest is "Obvious.", and the definition for melodious is "Having a pleasing melody."

The definition for retroactive is "effective as of a prior time or condition." Used in a sentence: The retroactive law made even past infractions punishable. The definition for accentuate is "to emphasize.", the definition for extol is "To praise highly.", and the definition for conduit is "Means for transmitting or distributing."

The definition for archetypal is "Characteristic of the original model or perfect example." Used in a sentence: Shakespeare's sonnets are considered archetypal love poems The definition for promote is "to contribute to the growth or prosperity of.", the definition for derelict is "Abandoned.", and the definition for polarize is "To break up into opposing groups."

The definition for futile is "Without purpose, completely ineffective." Used in a sentence: Arguing with Andrew is futile because he never changes his mind. The definition for deferment is "the act of delaying.", the definition for lurid is "Causing horror, shocking.", and the definition for periodic is "Occurring at regular intervals."