Enter criteria and click Find Words
Only six words put N first and A third, and four of them share the same opening. This is a page you read rather than solve.
NEAPS, NEARS, NEATH and NEATS all take E in the second box, which is four of the six. NGAIO and NYALA are the other two and neither is a word you would produce unprompted.
N is a workable opening letter but very little in English puts an A in the third box behind it. The NEA stem does almost all the surviving work, and outside it the language offers a tree and an antelope.
S closes three of the six. With a list this short there is no distribution worth reading, so the practical move is to compare all six against the letters you have already confirmed and play whichever fits.
It is the most ordinary word here. NEAPS and NEATS are real but specialised, and NEATH is a poetic shortening of beneath.
A southern African antelope. It is the only word on this page with Y in the second box.
Almost nothing in English follows N with a consonant and then an A at five letters. Once the NEA stem is used up there is very little left.