Posh or push or poosh, meaning fashionable or splendid appears in Cambridge University slang in 1903 when P.G. Wodehouse writes of a brightly colored waistcoat that it is "quite the most push thing around." The derivation from "Port Out Starboard Home" is fanciful. Partridge prefers to derive posh from a contraction of "'polished."
a posh word for the word big is Gargantuan.
Highfalutin
The posh word for sugar is "sucrose."
yes, its a very posh word and nobody but posh people say it anymore.
Soliloquy Resume Pontification
the word doff is not another word for posh. doff means to remove or take off, as clothing.
A Posh Font on MS Word is "French Script MT".
Lemonard
recreation
posh word for when the pollen from one flower reaches another
Indigent or impoverished.
edwardian