nounAinmfhocal1of material, tissue, etccruasmasc1cmuit depends on the hardness of the woodbraitheann sé ar chruas an adhmaidsurface hardnesscruas dromchla2chemistryceimicof watercruasmasc1cmutemporary hardnesscruas neamhbhuanwater hardnesscruas uisce3of life etccruatanmasc1cmuthe hardness of farm lifecruatan shaol na feirme, a chrua atá saol na feirme4of personcruasmasc1cmurighnefem4cmuthere was a hardness in himduine crua a bhí ann, bhí cruas ann