What Do the Different Status Codes Mean?

If you use your mouse to hover over the different status codes they will show a more detailed explanation of code itself on a orange popup, as you can see in the image below.

Status	Name	Description
ACT	Active	No injuries or suspension and is ready to play.
P	Probable	Most likely to play in the match
Q	Questionable	Unsure as to whether the player will participate in the match
S	Suspended	Unable to play, not due to injury or tactical decisions.
O	Out	Not able to play, most likely due to an injury
PLD	Played	Has already played in a match in the current gameweek.