Wishing someone good luck even though you believe they may not be successful. “You’re going to ask for a raise? The best of British to you!”

When someone seems to be very fortunate.“I can’t believe that Dave is being fast-tracked to the management position. He really was born under a lucky star!"

To say that something happened purely by chance. "We ran out of food at the party but as luck would have it, a nearby takeaway was open that day."

To feel grateful for avoiding a bad situation. "I thank my lucky stars that I bought an umbrella right before the thunderstorm."

To achieve sudden or sensational success. "The hungry wolf thought he had hit the jackpot when he discovered a herd of sleeping sheep."

To act immediately because now is the ideal time to do it. "The price of property has dropped. You should strike while the iron is hot."

Little or no possibility of success. "John hates exercise—a fat chance he has of winning the swim competition!"

To be fortunate. "I lucked out in my art history class by having a photographic memory and consistent study habits."

Extremely good luck or fortune. "I can't believe I won the lottery and a radio contest in the same week -I must have the luck of the Irish!

After failing at something twice, you will succeed on the third try. “Yes, I’m so glad that worked. The third time really is the charm!"

To do something before the situation changes and it is no longer possible. "There's a 50% discount. I think I'll subscribe while the going is good."

To express the hope that, after twice failing to accomplish something, one may succeed in the third attempt. "I made an appointment thinking third time lucky".