traffic pattern vs approach pattern

traffic pattern and approach pattern both are nouns.

Word	Noun	Adjective	Verb	Adverb
traffic pattern	Yes	No	No	No
approach pattern	Yes	No	No	No

As nouns, traffic pattern and approach pattern are synonyms defined as:

traffic pattern and approach pattern: the path that is prescribed for an airplane that is preparing to land at an airport

Other synonyms of traffic pattern include pattern.

traffic pattern (noun)	approach pattern (noun)
the path that is prescribed for an airplane that is preparing to land at an airport	the path that is prescribed for an airplane that is preparing to land at an airport