The word "pronounce" in French is "prononcer."
yo-gert or yo-gurt
You pronounce it the same way in french as you do in english, only with a french accent.
It is pronounced as "Lwahr" in French.
aret is how you pronounce it
"Shawm-pin-yons" is the way to pronounce champignons in French.
We don't pronounce it because in french we use french words for the horoscope, in this case: Bélier
un yaourt
yes
un yaourt
Yaourt and yoghurt are French equivalents of the English word "yogurt." The respective pronunciations of the masculine singular noun will be "ya-oort" and "yuh-gyoort" in French.
If you are looking for the way to pronounce the French word for key, "clef," it is pronounced, "cleh."