Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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noun
A person or thing whose nature or value is a mystery.
Definition source: English Wiktionary via Wiktextract
Usage: idiomatic
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: known quantity, household name
noun
Used other than figuratively or idiomatically: see unknown, quantity.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a variable whose values are solutions of an equation
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: unknown
Antonyms: none provided
Broader terms: variable
noun
a factor in a given situation whose bearing and importance is not apparent
Definition source: Princeton WordNet 3.0
Synonyms: none provided
Antonyms: none provided
Broader terms: factor
History
No etymology was provided for this word.
