The term EBON is related to the color BLACK, and the crossword solutions all reflect this. DARK is a four-letter word meaning a very DARK color, EBONY is a five-letter word meaning a hard, BLACK wood, SABLE is a five-letter word meaning a DARK brownish-BLACK color, BLACK is a five-letter word meaning the absence of color, JET is a three-letter word meaning a deep BLACK color, INKY is a four-letter word meaning a DARK BLACK color, RAVEN is a five-letter word meaning a large BLACK bird, and JETTY is a five-letter word meaning a small, DARK-colored rock.