Blow fish and Puffer

Puffer and blow fish are semantically related. In some cases you can use "Puffer" instead a noun phrase "Blow fish".

Puffer noun - Any of numerous marine fishes whose elongated spiny body can inflate itself with water or air to form a globe; several species contain a potent nerve poison; closely related to spiny puffers.

Blow fish and puffer are semantically related. Sometimes you can replace phrase "Blow fish" with "Puffer", this terms are similar.