Terms for subject Informal containing first-in

English	Russian
a person in the first year of service	первогодок
a person in the first year of service	первогодник
a person in the first year of service	первогодник (= первогодок)
be no longer in one's first youth	быть уже не первой молодости
first in priority	первоочередной (Val_Ships)
first thing in the morning	завтра первым делом (before anything else is done in the morning: I can't help you now. I'll do that first thing. Val_Ships)
first thing in the morning	завтра первым делом (Val_Ships)
in the first little bit	поначалу (ART Vancouver)
in the first place	первым делом (для начала, в первую очередь: In the first place, let's get the basics settled.)
in the first place	для начала (сперва, в первую очередь: In the first place, let's get the basics settled. 4uzhoj)
in the first place	вообще (с разными смысловыми оттенками: And what the hell were you doing here in the first place? • No debris, no scorching, no signs of machine damage. In fact, no sign the fucking thing was ever there in the first place. • If that is a "number which doesn't exist", then how were you able to make that assertion in the first place? • Why go to Mexico in the first place? 4uzhoj)
in the first place	изначально (Cumberbatch did the facial capture for the villain, and in fact it was his idea to take on the dual role in the first place. starkside)
in the first place	сначала
in the first place	в принципе (в знач. "вообще", "изначально" Val_Ships)
in the first place	перво-наперво (Abysslooker)
in the first place	во-первых (I'm not joining the health club because, in the first place, I don't like their hours, and in the second place, I can't afford the dues. 4uzhoj)
in the first place	начнём с того, что (m_rakova)
in the first place	уже потому (ставится в конце предложения goroshko)
in the first place	в первую очередь (для начала, сперва)
in the first place	сперва
in the first place	главным образом (triumfov)
in the first place	прежде всего
in the first place	и так (в знач. "и без того": I don't like spiders in the first place, let alone seeing a guy of this size sitting on my bed. 4uzhoj)
in the first place	и сам ('Get out.' The sergeant did so with an alacrity that suggested he hadn't much wanted to be there in the first place. 4uzhoj)
in the first place	хотя бы потому, что (Abysslooker)
not in one's first youth	не первой молодости
pass a bill in its first, second or third reading	принимать законопроект в первом, втором, третьем чтении (утверждать документ на определённой стадии его доработки to approve a law at various stages of editing, the process in which a bill becomes law in the Russian Parliament)