Briticism vs formulation

Briticism and formulation both are nouns.

Word	Noun	Adjective	Verb	Adverb
Briticism	Yes	No	No	No
formulation	Yes	No	No	No

As nouns, formulation is a hypernym of Briticism; that is, formulation is a word with a broader meaning than Briticism:

Briticism: an expression that is used in Great Britain (especially as contrasted with American English)
formulation: the style of expressing yourself

Other hypernyms of Briticism include expression.

Briticism (noun)	formulation (noun)
an expression that is used in Great Britain (especially as contrasted with American English)	inventing or contriving an idea or explanation and formulating it mentally
	the style of expressing yourself
	a substance prepared according to a formula