Leafy vegetable and Veggie

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

Veggie and leafy vegetable are semantically related. In some cases you can use "Veggie" instead a noun phrase "Leafy vegetable".

Veggie noun - Edible seeds or roots or stems or leaves or bulbs or tubers or nonsweet fruits of any of numerous herbaceous plant.

Leafy vegetable and veggie are semantically related. Sometimes you can replace phrase "Leafy vegetable" with "Veggie", this terms are similar.