bar exam vs bar examination

bar exam and bar examination both are nouns.

Word	Noun	Adjective	Verb	Adverb
bar exam	Yes	No	No	No
bar examination	Yes	No	No	No

As nouns, bar exam and bar examination are synonyms defined as:

bar exam and bar examination: an examination conducted at regular intervals to determine whether a candidate is qualified to practice law in a given jurisdiction

bar exam (noun)	bar examination (noun)
an examination conducted at regular intervals to determine whether a candidate is qualified to practice law in a given jurisdiction	an examination conducted at regular intervals to determine whether a candidate is qualified to practice law in a given jurisdiction