Neologism
A newly created word or expression, or an existing word given a new meaning. Neologisms represent lexical innovation in a language.
Real World
When Twitter launched in 2006, 'tweet' shifted from a bird sound to a verb meaning to post a short message — Oxford Dictionaries officially added it in 2013, marking its lexical permanence.
Exam Focus
Name the specific word-formation process behind a neologism (conversion, blending, etc.) rather than just calling it 'a new word' to gain AO1 marks.
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