This is the 988th most frequent Hungarian word.
mekkora
"How big" or "how much."
In this sentence, 'mekkora' is used as an interrogative pronoun asking about the size or extent of the house.
Mekkora a házad?
How big is your house?
Here, 'mekkora' is used to express a degree or extent of luck, showing an astonished or emphatic sentiment.
Nem hittem volna, mekkora szerencsénk lesz!
I wouldn't have believed how lucky we were going to be!
In this example, 'mekkora' describes the magnitude of the waves, conveying a sense of amazement or observation.