The letters spell the text phrase "U r my life."
The letters MUFLYIRE have no one-word anagram, and can only spell phrases of dubious meaning, such as "lime fury","mile fury, or "my fur lei".
4-letter words
elmy, emir, file, film, fire, firm, fley, flue, fuel, fume, fumy, furl, fury, lief, lier, lieu, life, lime, limy, lire, lure, lyre, merl, mile, mire, miry, mule, mure, reif, rely, riel, rife, rile, rime, rimy, rule, ylem, yule
5-letter words
femur, ferly, fermi, fiery, filer, filmy, filum, flier, flume, flyer, fumer, ileum, lemur, lifer, limey, miler, muley, refly, reify, rifle, riley
6-letter words
filmer, firmly, fleury, fumier, ireful, refilm, rifely
There are 4 distinguishable letters in the word fish, so there is 4! or 24 different ways can you arrange the letters in the word fish.
Tubelight
The letters 'ustoodwernj' = justone word.
Those letters will spell ceiling fan.
France.
my heart
Batteries
oranges
Since no letters are repeated in the word prime, you can arrange the letters in the word prime 5! ways, or 120 ways.
The word is bravado.
Given two letters, there are two ways to arrange them; first then second, or second then first. The way the question is worded, the other letters of the word do not matter.
One word with the letters lgeifsne is the word feelings.