sheket means "silence" or "quietness"
sheket! (!שקט)
calm (masculine) = shaket (שקט) calm (feminine) = shketa (שקטה)
I assume you mean sheket bevakasha, which means "quiet please."
The word quiet in Hebrew is 'Sheket' (with stress on pronounciation of te first syllable) - this is how you say Quiet as an order. Although if you want to say Quiet as an adjective you say 'Shaket' (with emphasis on the last syllable). This can soud sorta complicated to non-Hebrew speakers so you would probably find it easier to say 'silence' which is said ''D'mama'' with stress on the last syllable.Hope this helps ;)
adjective = ragu'a (רגוע) noun = sheket (שקט) verb = hirgi'a (הרגיע)
diestra has no meaning in Hebrew. This is not a Hebrew word.
Sydney is not a Hebrew word. It has no meaning in Hebrew.
the word "jae" is not a Hebrew word.
lihim is not a Hebrew word.
"peckel" is not a Hebrew word
Lully is not a Hebrew word.
adera is not a Hebrew word.