There is no 9 letter word, 4th letter r that can be made from those letters.
soldier
Assuming you don't repeat letters:* 7 options for the first letter * 6 options for the second letter * 5 options for the third letter * 4 options for the fourth letter (Multiply all of the above together.)
Six letter words using the letters 'nuspiegn' are ensign, supine, and genius.
Breeder is a 7 letter words using only those letters
Using all 7 letters you get rewords
You can not spell any 4 letter words with the 3RD letter N using only the letters pmhlijkssxt. The letters do not include the letter N.
These ten are in the Scrabble dictionary: author fourth hatbox hotbox outbox outfox rubato rubout tabour thorax
'PROSCENIUM' itself is the only 10-letter word using those letters. There are several 8-letter words, but no other 10-letter ones.
An eight letter word with three vowels using those letters is scavenge.Eight letter words with four vowels using those letters are agencies and envisage.
Librarian is a 9 letter word that has letters BRAIN in it.
Some three letter words using the letters FROTY are:forfortfortyfrofryoforrottotoyTroytryyo
There are no six-letter English words using those letters.