na

"I am na going to the party tonight; I have too much homework. "

""Did you finish your homework?" Na, I'll do it later. "

""Do you want to go to the park?" "Na." (Meaning: No.) "

""Do you want to go to the park?" "Na, I'm too tired." "

"In grammar exercises, "dog" might be labeled "(na)" to show it's a noun animate. "