hydrogen bomb vs thermonuclear bomb

hydrogen bomb and thermonuclear bomb both are nouns.

Word	Noun	Adjective	Verb	Adverb
hydrogen bomb	Yes	No	No	No
thermonuclear bomb	Yes	No	No	No

As nouns, hydrogen bomb and thermonuclear bomb are synonyms defined as:

hydrogen bomb and thermonuclear bomb: a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium

Other synonyms of hydrogen bomb include fusion bomb, H-bomb.

hydrogen bomb (noun)	thermonuclear bomb (noun)
a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium	a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium