ounce vs oz.

ounce and oz. both are nouns.

Word	Noun	Adjective	Verb	Adverb
ounce	Yes	No	No	No
oz.	Yes	No	No	No

As nouns, ounce and oz. are synonyms defined as:

ounce and oz.: a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams

ounce (noun)	oz. (noun)
large feline of upland central Asia having long thick whitish fur	a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams
a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams
a unit of apothecary weight equal to 480 grains or one twelfth of a troy pound