Solid

굳다

gutda

(in the solid state)

굳다

gutda

(strong, unyielding (as of foundations etc))

굳세다

gutseda

(strong, unyielding (as of foundations etc))

단단하다

dandan-hada

(in the solid state)

틀림없다

teullim-eopda

(lacking errors or inconsistencies)

고체

goche

(chemistry: fundamental state of matter)

립체

ripche

(geometry: three-dimensional object)

입체

ipche

(geometry: three-dimensional object)