Neologism definitions and example sentences on Wordnik

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Definitions (11)

noun A new word, expression, or usage.
noun The creation or use of new words or senses.
noun Psychology The invention of new words regarded as a symptom of certain psychotic disorders, such as schizophrenia.

Meaning "extremely large," ginormous is also what's known, according to the Times itself, as a neologism, or a newly invented word.
LaBerge likes to call himself and his fellow lucid dreamers "oneironauts," a neologism he coined from the Greek words for dream and explorer. — Omni: September 1994
This increased interest in the personal aspects of science and the lives of scientists probably began with Watson's The Double Helix, and it may be making too much of it to cite it as evidence for "homoculturalization" (how's that for a neologism?) — Omni: November 1993
The phenomenon has become so widespread that it begs for a neologism. — Asia Times Online
Of course, given Aira´s clear voice and avoidance of neologism (the only difficult part with this book might have been Aira´s -- an Argentine -- flawless Chilean dialogue) the task is far from Herculean. — Bookslut