A variety of more specific concepts used by scholars falls under the umbrella of
nonce words, of which overlap is also sometimes possible: •
nonsense word: a nonce word that is meaningless unless it follows the
phonology of a particular language •
nonword: a nonsense word that is not even pronounceable in a particular language •
pseudoword: a nonsense word that still follows the
phonotactics of a particular language and is therefore pronounceable, feeling to native speakers like a possible word (for example, in English,
blurk is a pseudoword, but
bldzkg is a nonword); thus, pseudowords follow a language's phonological rules but have no meaning •
ghost word: a nonce word authoritatively described in a
reference work that turns out to have originated from a
typo or other simple error •
protologism: a nonce word that has achieved repeated usage, perhaps even by a small group but not beyond that (an intermediate step towards a
neologism) •
stunt word: a nonce word intentionally coined to demonstrate the creator's cleverness or elicit an emotional reaction, such as admiration or laughter; such words are often noted in the works of
Dr. Seuss, as in "Sometimes I am quite certain there's a Jertain in the curtain", in which the one-time use of
Jertain refers to some unspecified fictional creature purely invented to create a whimsical rhyme with
certain and
curtain Similar or related concepts Many types of other words can also be meaningful nonce words, as is true of most
sniglets (words, often stunt words, explicitly coined in the absence of any relevant dictionary word). Other types of misinterpretations or humorous re-wordings can also be nonce words, as may occur in
word play, such as certain examples of
puns,
spoonerisms,
malapropisms, etc. Furthermore, meaningless nonce words can occur unintentionally or spontaneously, for instance through
errors (
typographical or otherwise) or through
keysmashes. ==In child development studies==