Bacteria and Superbug

Bacteria noun - (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants.

Superbug and bacteria are semantically related. In some cases you can replace term "Superbug" with "Bacteria", this nouns are similar.

Superbug noun - A strain of bacteria that is resistant to all antibiotics.

Bacteria and superbug are semantically related. You can use "Bacteria" instead a noun "Superbug".