hotdog vs hot dog

hotdog and hot dog both are nouns.

Word	Noun	Adjective	Verb	Adverb
hotdog	Yes	No	No	No
hot dog	Yes	No	No	No

As nouns, hotdog and hot dog are synonyms defined as:

hotdog and hot dog: a smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll

Other synonyms of hotdog include dog, frank, frankfurter, weenie, wiener, wienerwurst.

As nouns, hotdog and hot dog are synonyms defined as:

Other synonyms of hotdog include red hot.

As nouns, hotdog and hot dog are synonyms defined as:

hotdog and hot dog: someone who performs dangerous stunts to attract attention to himself

hotdog (noun)	hot dog (noun)
a smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll	a smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll
a frankfurter served hot on a bun	a frankfurter served hot on a bun
someone who performs dangerous stunts to attract attention to himself	someone who performs dangerous stunts to attract attention to himself