Noun
(computing) 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.
(also written wild card) An uncontrolled or unpredictable element.
(also written wild card) An element, often deliberately concealed, which is withheld for contingency.
(sports, card games) Alternative form of wild card.
Source: en.wiktionary.orgAmerica's Got Talent" returned with a new episode on Tuesday, September 8. The new outing brought season 15 semi-finals featuring the performances of 11 acts, including two wildcard acts. Source: Internet
A common use of the wildcard is in searching for files on a computer. Source: Internet
And — a wildcard prediction here — it will lay the groundwork for holding that states fund the tuition of students who attend religiously affiliated schools. Source: Internet
After this defeat, Hewitt who had been scheduled to play in Los Angeles the following week, opted not to take up the offer of a wildcard and withdrew from the event to recover from his foot injury. Source: Internet
Another wildcard came in the form of an outside party who yelled over the backyard wall that Nicole and Cody were playing everyone. Source: Internet
At Wimbledon, Hewitt was awarded a wildcard and was defeated by Jarkko Nieminen 6–3, 3–6, 6–4, 0–6, 9–11 in the first round of his eighteenth and final appearance at the tournament. Source: Internet