Blind eel and Salamander

Blind eel noun - Aquatic eel-shaped salamander having two pairs of very small feet; of still muddy waters in the southern United States.

Salamander and blind eel are semantically related. In some cases you can use "Salamander" instead a noun phrase "Blind eel".

Salamander noun - Any of various typically terrestrial amphibians that resemble lizards and that return to water only to breed.

Blind eel and salamander are semantically related. Sometimes you can replace phrase "Blind eel" with "Salamander", this terms are similar.