crystal clear, be
Also, be clear as crystal. Be easy to understand, have a very obvious meaning. For example, The directions for installing the door are crystal clear, or Her intentions are clear as crystal. Allusions to crystal's very high degree of transparency have been made since the 15th century.
Words nearby crystal clear, be
cryptozygous,
cryst.,
crystal,
crystal ball,
crystal class,
crystal clear, be,
crystal counter,
crystal defect,
crystal detector,
crystal form,
crystal gazing