concrete
From LSJ
English > Greek (Woodhouse)
substantive
rubble: Ar. and P. χάλιξ, ὁ or ή.
adjective
Opposed to abstract.
did you not just say that the upholsterer makes not the abstract conception which, as we say, constitutes the bed, but the concrete bed: P. οὐκ ἄρτι ἔλεγες ὅτι … (ὁ κλινοποιός)… οὐ τὸ εἶδος ποιεῖ ὃ δή φαμεν εἶναι ὃ ἔστι κλίνη ἀλλὰ κλίνην τινά (Plato Republic 597A).