hiki noun2 •(historical) A copper coin used in Japan in the Sengoku period, equal to 10 mon.Sogi once donated one thousand hiki in cash (based on rice prices in 1984, some five thousand dollars) to the court for repairs to the Library of Official Documents (Kammu Bunko). — 1991 •(informal) Clipping of hikikomori (“reclusive person”) formshikis