Hydrogen-bomb and Thermonuclear bomb

Hydrogen-bomb verb - Attack with a hydrogen bomb.

Thermonuclear bomb and hydrogen-bomb are semantically related. in nuclear bomb topic. In some cases you can use "Thermonuclear bomb" instead a noun phrase "Hydrogen-bomb".

Thermonuclear bomb noun - A nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium.

Hydrogen-bomb and thermonuclear bomb are semantically related. Sometimes you can replace phrase "Hydrogen-bomb" with "Thermonuclear bomb", this phrases are similar.