Widening
Part of speech: noun
Definition: The action of the verb widen.
Part of speech: adjective
Definition: Of things that are growing wider. Of things that are separate, with increasing separation.
Part of speech: verb
Definition: To become wide or wider.
Example sentence: Eye-popping tales of growing income inequality are hardly new. By now, nearly every American must be painfully aware of the widening pay gap between top executives and shop floor laborers; between 'Master of the Universe' financiers and pretty much everyone else.
Broadening
Part of speech: verb
Definition: To make broad or broader.
Part of speech: noun
Definition: The act of becoming broader