Conservationist and Greens

Conservationist noun - Someone who works to protect the environment from destruction or pollution.

Greens and conservationist are semantically related. In some cases you can replace term "Greens" with "Conservationist", this nouns are similar.

Greens noun - Any of various leafy plants or their leaves and stems eaten as vegetables.

Conservationist and greens are semantically related. Sometimes you can use "Conservationist" instead a noun "Greens".