icing vs freezing

icing and freezing both are nouns.

Word	Noun	Adjective	Verb	Adverb
icing	Yes	No	No	No
freezing	Yes	No	No	No

As nouns, freezing is a hypernym of icing; that is, freezing is a word with a broader meaning than icing:

icing: the formation of frost or ice on a surface
freezing: the withdrawal of heat to change something from a liquid to a solid

Other hypernyms of icing include freeze.

icing (noun)	freezing (noun)
(ice hockey) the act of shooting the puck from within your own defensive area the length of the rink beyond the opponent's goal	the withdrawal of heat to change something from a liquid to a solid
a flavored sugar topping used to coat and decorate cakes
the formation of frost or ice on a surface