wildcard.
A character that takes the place of any other character or string that is not known or specified.
Meaning & usage
A character that takes the place of any other character or string that is not known or specified.
If the character * is acting as a wildcard, then the pattern a*m matches each of the words amalgam, atom and alum.
An uncontrolled or unpredictable element.
An element, often deliberately concealed, which is withheld for contingency.
Alternative form of wild card.
A letter or symbol that substitutes for a generic or poorly identified sound, for example capital C for any or some consonant, or capital V for any or some vowel.
Where this word comes from
From wild + card.
To replace or supplement with a wildcard character to allow matching against a range of possible values.
Where this word comes from
From wild + card.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.