A type of knot with two loops, used to tie together two cords such as shoelaces or apron strings, and frequently used as decoration, such as in gift-wrapping
To cause to deviate from straightness; to bend; to inflect; to make crooked or curved
A form of warp that is in excess of one-fourth inch in the plane of the door itself The measurement is taken from the widest point of a straight line from end to end of the door