centigrade scale vs international scale

centigrade scale and international scale both are nouns.

Word	Noun	Adjective	Verb	Adverb
centigrade scale	Yes	No	No	No
international scale	Yes	No	No	No

As nouns, centigrade scale and international scale are synonyms defined as:

centigrade scale and international scale: a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees

Other synonyms of centigrade scale include Celsius scale.

centigrade scale (noun)	international scale (noun)
a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees	a temperature scale that defines the freezing point of water as 0 degrees and the boiling point of water as 100 degrees