Plantain and Veggie

Plantain noun - Starchy banana-like fruit; eaten (always cooked) as a staple vegetable throughout the tropics.

Veggie and plantain are semantically related. In some cases you can use "Veggie" instead a noun "Plantain".

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

Plantain and veggie are semantically related. Sometimes you can replace term "Plantain" with "Veggie", this nouns are similar.