combat boot vs desert boot

combat boot and desert boot both are nouns.

Word	Noun	Adjective	Verb	Adverb
combat boot	Yes	No	No	No
desert boot	Yes	No	No	No

As nouns, combat boot and desert boot are synonyms defined as:

Other synonyms of combat boot include buskin, half boot, top boot.

combat boot (noun)	desert boot (noun)
a boot reaching halfway up to the knee	a boot reaching halfway up to the knee
A type of heavy leather lace-up boot adopted mainly by heavy metal, punk and goth subcultures; comes in different colors and heights which are measured in the number of eyelets.