Godan verb with 'ku' ending, Transitive verbto hull (rice, barley, etc.); to pound (rice); to polish (rice); to stamp (ore)

NounEcklonia cava (species of brown alga)

Nounrice polishing (removing the shell of brown rice to leave white rice)

Noundark indigo (almost black)

Nounmortar (for pounding rice)