Scotch fir vs Scotch pine

Scotch fir and Scotch pine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scotch fir	Yes	No	No	No
Scotch pine	Yes	No	No	No

As nouns, Scotch fir and Scotch pine are synonyms defined as:

Scotch fir and Scotch pine: medium large two-needled pine of northern Europe and Asia having flaking red-brown bark

Other synonyms of Scotch fir include Pinus sylvestris, Scots pine.

Scotch fir (noun)	Scotch pine (noun)
medium large two-needled pine of northern Europe and Asia having flaking red-brown bark	medium large two-needled pine of northern Europe and Asia having flaking red-brown bark