Table C.12 -- ECs whose label begins with K
| Label | Groups | Reference type | References |
| KELP_BED | LIVING_ORGANISM, PHYSIOGRAPHY, PLANT, WATER_BODY_FLOOR | DR | [NSOED] |
| KENNEL | ANIMAL, LIVING_ORGANISM | DR | [NSOED, "kennel", A.1] |
| KILN | INDUSTRY, TEMPERATURE | DR | [NSOED, "kiln", A] |
| KUIPER_BELT | SPACE | IR | [BSFG] |