Athlete's foot and Roundworm

Athlete's foot noun - Fungal infection of the feet.

Roundworm and athlete's foot are semantically related. In some cases you can use "Roundworm" instead a noun phrase "Athlete's foot".

Roundworm noun - Unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic.

Athlete's foot and roundworm are semantically related. Sometimes you can replace phrase "Athlete's foot" with "Roundworm", this terms are similar.