As nouns the difference between napa and naja
is that napa is Brassica rapa subsp. pekinensis, a kind of Chinese cabbage while naja is a member of the Naja genus of poisonous snakes; cobras.
napa
English
Noun
(-)
Brassica rapa subsp. pekinensis , a kind of Chinese cabbage.
Synonyms
* celery cabbage
----
naja
English
Noun
(
en noun)
A member of the Naja genus of poisonous snakes; cobras