Bekhorot 45: words to know

מָה נַפְשָׁךְ (mah nafshekh): whichever way you look at it; either way. Rabbi Yoḥanan introduces a logical difficulty that remains regardless of which premise is adopted.
זִיל בָּתַר רוּבָּא (zil batar ruba): follow the majority. Rava uses this principle to explain that corpse bone counts follow normal human anatomy.
אִינִי (ini): is that so?. The Gemara poses a challenge against the initial definition given for a skin blemish.
אוֹתוֹ וְאֶת בְּנוֹ (oto ve'et beno): slaughtering an animal and its offspring on one day. Listed as a flaw that disqualifies an animal offering but not a human priest.
הָנִיחָא לְמַאן דְּאָמַר (haniya leman de'amar): this works well according to the one who says. The Gemara uses this formula to challenge a resolution that satisfies only one halakhic opinion.