flukefluke /fluːk/ noun [countable] informal 
Word Origin
He agreed that the second goal was a fluke.—fluky, flukey adjective: a fluky win
Word OriginWORD ORIGINfluke
ExamplesOrigin:
1800-1900 Origin unknown. EXAMPLES FROM OTHER DICTIONARIES
Thesaurus- I'll have to win more than once, otherwise people will think it was a fluke.
- But there was no fluke, and no mistake, about what happened here Sunday.
- By some terrific fluke Richard came face to face with his future at the precise time he most needed to see it.
- This was a fluke, a one-time loophole that has been plugged.
- Unconsciously we feel it was a fluke and we are afraid of being found out.
THESAURUS► luck
something good that happens because of luck: noun [uncountable] when good or bad things happen to people by chance: · The game involves an element of luck as well as skill.
► chance noun [uncountable] the way that some things happen without being planned or caused by people: · I met her by chance on a plane to Tokyo.· Like all top athletes, he leaves nothing to chance, and trains harder than anybody.
► fortune noun [uncountable] luck and the effect it has on your life: · I had the good fortune to work with some great people.· The tour was dogged by ill fortune (=it had a lot of bad luck) from the start.· Fortune has shone on the team so far this season (=they have been lucky).
► fate noun [uncountable] a power that some people believe controls what happens to people and which cannot be changed or stopped: · Fate dealt him a cruel blow with the death of his wife at the age of 32.· It must have been fate that brought them together, and fate that tore them apart.· We can’t just leave it to fate.
► providence noun [uncountable] a power which some people believe controls what happens in our lives and protects us: · Do you believe in divine providence (=God’s power to make things happen)?· Her life was mapped out for her by providence.
► fluke noun [countable usually singular] informal something good that happens because of luck: · Their second goal was a fluke.· They won by a fluke.
Longman Language Activatora lucky thing that happens► lucky a lucky event happens because of good luck, and not because of hard work, careful planning etc: lucky guess/win/escape etc: · "How did you know he'd be there?" "It was a lucky guess."· Italy got a lucky goal in the last five minutes of the game.it is lucky (that): · ''It's lucky that you remembered about the passports," said Barry as they drove away.
► fortunate lucky - use this especially about something that happens which saves you from danger or serious trouble. Fortunate is more formal than lucky: it is fortunate (that): · It is extremely fortunate that there was no-one in the building when the bomb went off.fortunate for: · Some plants actually prefer a lot of shade, which is fortunate for gardeners choosing plants for gloomy corners.
► luckily/fortunately because of good luck - use this when something dangerous or unpleasant is avoided as a result of good luck: · I had forgotten my key, but luckily Ahmed was there and let me in.· Fortunately, there was no-one in the office when the fire started.luckily/fortunately for: · Luckily for us it didn't rain till the evening.
► it's a good thing also it's a good job British spoken say this when something lucky happens that saves you from experiencing problems or danger: it's a good thing (that): · It's a good thing I brought my camera.· It's a good job you didn't scream.
► a stroke of luck something lucky that happens to you very unexpectedly and saves you from a difficult or inconvenient situation: · My car had broken down opposite a garage, which was a real stroke of luck.· Here's a letter from my father with a cheque inside - isn't that a stroke of luck!it is a stroke of luck (that): · It was a stroke of luck that they'd just substituted their usual penalty taker.
► be your lucky day/night etc if it is your lucky day, night etc , you are lucky and something good happens then: · I have a feeling today's going to be my lucky day.· He kissed her again and then started up the car. Tonight was his lucky night.
► miraculous use this when something very dangerous or unpleasant is avoided as a result of good luck, in a way that is almost unbelievable: · A teenager had a miraculous escape last night when the car she was travelling in overturned.· The doctor gave her a month to live but she made a miraculous recovery.it is miraculous (that): · The emergency services said it was miraculous that no-one was seriously injured.
► fluke informal something very surprising that only happens because of luck, not because of your skill or planning: · I'll have to win more than once, otherwise people will think it was a fluke.
He agreed that the second goal was a fluke.—fluky, flukey adjective: a fluky win