Langouste and Shellfish

Langouste noun - Warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California.

Shellfish and langouste are semantically related. In some cases you can use "Shellfish" instead a noun "Langouste".

Shellfish noun - Invertebrate having a soft unsegmented body usually enclosed in a shell.

Langouste and shellfish are semantically related. Sometimes you can replace term "Langouste" with "Shellfish", this nouns are similar.