יצא - יוצא He fulfilled his obligation and does not have to do the mitzvah again לכתחילה To begin with - the preferred way to do a Mitzvah בדיעבד After the fact/not the best/he already did the Mitzvah - not in the best way possible. Sometimes it's ok and he does not need to redo it, sometimes, he does need to redo it. חייב - חיוב obligated - obligation -He has to... פטור - פטר exempt - makes exempt - He does not have to... מדאורייתא From the Torah מדרבנן From the Rabbanan - From the Chachamim טמא - טומאה impure - impurity טהור - טהורה pure - purity תנא קמא "The First Tanna" term used to identify the unnamed Rabbi at the beginning of a מחלוקת in a משנה מחלוקת a disagreement (among Rabbis to find out the best way to do a Mitzvah or learn the Torah) שבעת המינים The seven species- special food products of the Land of Eretz Yisrael, mentioned in the Torah