X marks the spot
- begin at X, look for X, it can be found at XThe pirate said to his crew, "X marks the spot".
- for adults, for a mature audienceBorn Loose is an x-rated video. It contains nudity and sex.
- extra large or very large, extra luxury or extra power; shirt - size XL, car - 300XLThis shirt is marked XL. What does that mean? It means extra large.
On cars, XL means extra luxury or power.