Royal Flush
Basic Definition
A royal flush is the most powerful hand in poker, consisting of a combination of five cards: A, K, Q, J, and 10, all of the same suit. This hand is extremely rare and stronger than any other hand.
Specific Situation
If your hand is 
and the flop comes 

, you have completed a royal flush.
If your hand is 
, and the flop shows 

, the turn shows
, and the river shows
, you have a royal flush.
Important Information
A royal flush is the strongest hand and guarantees a win. However, the probability of completing it is very low, so aiming for it too much is inefficient.
To complete this hand, you need to meet the conditions of a suited straight. If the hand is not complete, you should also consider playing it as a flush or a straight.
Examples of Term Usage
"I completed a royal flush on the flop and slow-played until the turn because my opponent was aggressive."