Kwan Jang Nim - Grandmaster.
Ko Dan Ja - Master level - 4th Dan and above, represented by a blue belt with a red stripe.
Ko Dan Ja Shim Sa - The week-long testing event all students must go through to reach the rank of Master.
Sa Dan - 4th Dan.
Sa Bom - Teacher - Instructor ranked
4th Dan and above.
Push-ups - Your new favourite technique!