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or wild card  (wīld′kärd′)
1. Games A playing card whose value can vary as determined by its holder.
2. Sports An athlete or team selected to compete in a tournament or playoff from among those who did not qualify by meeting the regular requirements.
3. Computers A symbol that stands for one or more unspecified characters, used especially in searching text and in selecting multiple files or directories.
4. Slang An unpredictable or unforeseeable factor: A surprise witness proved to be the wild card at the trial.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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"We were hoping to maybe hold a wildcard until a little bit closer to the time to see how I might feel and get some matches hopefully and a bit of practice.
Qatar's Mubarka al-Nuaimi has been awarded a wildcard into the qualifying rounds of 2018 Qatar Total Open by the Qatar Tennis Federation (QTF).
NEW ENGLAND have been cut to 7-4 favourites for the Super Bowl after fifth seeds Tennessee upset Kansas City in the AFC wildcard playoffs to earn a shot at the Patriots, writes Phil Agius.
M2 EQUITYBITES-December 1, 2017-UK Marketing Group Acquires Germany Based Wildcard Communications
Sharapova was denied a wildcard for the French Open, missed Wimbledon through injury and reached the US Open's fourth round as a wildcard before losing to Latvia's Anastasija Sevastova.
Summary: Johannesburg [South Africa], August 16 (ANI): Russian tennis star Maria Sharapova will be playing her first Grand Slam after coming back from the 15-month doping back after receiving wildcard for the US Open which begins August 28.
The Scot said: "We were hoping to hold a wildcard until nearer the time and see how it feels.
The most exciting bit of the amateur competition in the Road to Masters has been the wildcard which has since been determined by the host clubs.
Dancers Libby and Charlie have won a wildcard place in the Britain's Got Talent final.
Andy Murray has been given a wildcard to play at London's Queen's Club next month even though he has yet to set a date for a potential return to the court after hip surgery.
Using these three characters are particularly difficult if you have hundreds of VLOOKUPs and the values already contain wildcard characters.
Wimbledon chiefs have suggested they may extend the deadline for Andy Murray to apply for a wildcard to compete at this year's championships as the two-time winner battles to regain fitness.The British former world number one, currently ranked 218th in the world, is recovering from hip surgery and has yet to set a date for a potential return.