Mustachios is a 10 letter English word. It's valid Words with friends word worth 18 points.
You can make 711 anagrams from letters in mustachios (achimosstu).
1545-55; Spanish mostacho and its source, Italian mostaccio, variant of mostacchio Medieval Greek moustáki, Doric Greek mýstax, stem mystak- upper lip, mustache
He stood upwards of six feet in his boots, had a splendid head of curling black hair, and a mustachio and whiskers to match.
The cheek-feathers are elongated, so as to form on each side a sort of mustachio.
Furlong thought he alluded to the mustachio, and replied with an assurance that he "liked it of all things."
And the student rose, drew up his tall form, twisted his mustachio, and looked fiercely around.
His face, greatly sunburnt, was more than half hidden by whisker and mustachio.
Another his mustachio stout Curls at the ends in fashion suave.
His name ended in "ski," he twirled his mustachio after the Polish fashion, and drew himself up most elegantly.