keep highest 1. It's how Avrae tells the die roller to roll with advantage.

"Attunement, ritual, and concentration. But yes a tool tip would be very useful." 

Second that, I understood the other three but this is the first place that told me what the L in the hexagon meant. For the longest time I thought it meant 'legacy'.

Thank you for the informative question ! heh. 

So if I swing a sword item that has a little A on it I can always have advantage while swinging? 

Quote from Isamucataclysm666 >>

So if I swing a sword item that has a little A on it I can always have advantage while swinging? 

 
That depends on what’s granting the Advantage. Click on it and it should tell you when you have Advantage and when you don’t 

Quote from IamSposta >>

Quote from Isamucataclysm666 >>

So if I swing a sword item that has a little A on it I can always have advantage while swinging? 

 
That depends on what’s granting the Advantage. Click on it and it should tell you when you have Advantage and when you don’t 

 The sword with a little A probably requires attunement.

Quote from jl8e >>

Quote from IamSposta >>

Quote from Isamucataclysm666 >>

So if I swing a sword item that has a little A on it I can always have advantage while swinging? 

 
That depends on what’s granting the Advantage. Click on it and it should tell you when you have Advantage and when you don’t 

 The sword with a little A probably requires attunement.

 
Good point. Is it a green A or a black A?

2d20kh1 is dice speak for advantage. It says to roll 2 20-sided dice (aka d20) and "keep highest one" (kh1).

Similarly, if you roll for attributes, you could say 4d6kh3 (roll 4 dice and keep highest 3).