つまり: that is

つまり、君きみは行いきたくないということだね。

In short, you're saying you don't want to go.

いくつかの家いえが集あつまって、ムラ、つまり集落しゅうらくができました。

Several houses gathered together to form a village, that is, a settlement.

麻あさなどの草くさの繊維せんいで編あんだ布ぬの、つまり編布あんぎんの服ふくもあったようです。

It seems there were also clothes made of cloth plaited from plant fibers such as hemp, that is, angin cloth.

数かぞえきれないほどたくさんの神々かみがみ、つまり八百万の神やおよろずのかみは、天安河原あまのやすのかわらに集あつまって、相談そうだんしました。

The countless gods, the eight million gods as they are called, gathered at Ame-no-yasu-no-kawara, the heavenly riverbed, and held a council.

まず、常世の長鳴鳥とこよのながなきどり、つまり長ながく鳴なくにわとりを集あつめて、鳴なかせました。

First, they gathered the long-crowing birds of the eternal land, that is, roosters that crow for a long time, and made them crow.