These are my 15 words that use the consonants RNT in that order and no others: aeronaut, arrant, errant, orient, ornate, rant, rennet, rent, reunite, riant, ruinate, runout, runt, runty, and urinate. One obscure word that fits the rules is arenite, a type of sand. I didn’t count aren’t, because it includes punctuation (hyphens and apostrophes are not allowed).
