emunah

"faith"; sometimes contrasted with practical striving in the material world

halevai

I wish!

"Would that it be so" (Steinmetz, Yiddish and English)

If only

mazel

congratulations

luck (good)

shidduch

match

arranged spousal match

mate

a date in the process of finding one's spouse

svara

justification, reason, plausible explanation

guess, hypothesis

tzadik

A highly learned and esteemed rabbinic leader (sometimes used as an alternative name for a Hasidic rebbe).

Common name for the 18th letter of the Hebrew alphabet (tzadi / tzade).

Someone who does extremely righteous deeds.