wood defects!O.o

I saw various defects in wood during my research but didnt really know what all of them were called except for knots and splits:)i came across these terms:

Knots are limbs separated from the tree trunk during tree growth.

Wane is bark on the edge of a board.

Pitch Pocket is an opening in a board containing pitch.

Splits is the tearing apart of wood cells due to improper storage or handling.

Checks are the lengthwise separation of wood due to shrinkage.