I don't think that omis is indeed a latin word, if it is then I apologize.
However, "Familla est omnis," means "Family is everything,". Familia est omnes res OR Familia est omnia would be 'Family is everything.' The singular 'omnis' is not used to mean 'everything.'
The verb est in Latin is "is" in English.
Comment est is translated "how is..." in English.
Est le... in French means "Is the..." in English.
Qui est...? in French is "Who is...?" in English.
is that / is this / is it ...
Est-il moche? in French is "Is he ugly?" in English.
Comment est-il? in French means "How is he/it?" in English.
Comment est votre...? in French means "How is your...?" in English.
Est-ce que...? in French means "Is it that...?" in English.
"When translated to English, 'Quel est ton prénom' means 'What is your first name?'"
"who is it ? who is he ? who is she ?"
Qui est de Paris? in French is "Who is from Paris?" in English.