S1U1B3C3O1O1L1I1N1G2
15 points
SUBCOOLING is validvalid
SUBCOOL, to cool below the freezing point without solidification [v]
SUBCOOL, to cool below the freezing point [v]
SUBCOOL, to cool below the freezing point without solidification [v]
SUBCOOL, to cool below the freezing point [v]