don

As a noun don

is (science) (dissolved organic nitrogen).

As an initialism dod is

.

As nouns the difference between don and ton

is that don is (science) (dissolved organic nitrogen) while ton is lineage, ancestry.

As a noun don

is (science) (dissolved organic nitrogen).

As an adverb doon is

(geordie) down.

As a preposition doon is

(geordie) down.

As an adjective doon is

(geordie) on a lower level than before; down.

As a noun don

is (science) (dissolved organic nitrogen).

As nouns the difference between don and dog

is that don is (science) (dissolved organic nitrogen) while dog is a mammal, canis lupus familiaris , that has been domesticated for thousands of years, of highly variable appearance due to human breeding.

As a verb dog is

to pursue with the intent to catch.

As nouns the difference between don and dox

is that don is (science) (dissolved organic nitrogen) while dox is (slang) documents, especially information sought by hackers about an individual (address, credit card numbers, etc).

As a verb dox is

(slang|transitive) to publish the personal information of (an individual) on the internet.

As nouns the difference between don and dyon

is that don is (science) (dissolved organic nitrogen) while dyon is (physics) a hypothetical particle with both electric and magnetic charges.

As nouns the difference between don and udon

is that don is a university professor, particularly one at Oxford or Cambridge while udon is a Japanese wheat noodle.

As a verb don

is to put on, to dress in.

As a proper noun Don

is a diminutive of the male given name Donald or Gordon.

As a noun don

is (science) (dissolved organic nitrogen).

As an initialism dtn is

.

As a noun don

is (science) (dissolved organic nitrogen).

As an interjection doy is

disdainful indication that something is obvious; see duh.