Eng

Namely...

即

Accordingly, I.e., Immediate, Immediately, Namely, Now, Prompt, Right away, Then

就

Accept, Connect, Go To, Namely, Precisely, Right away, Then

那就是

Namely, That is, Which was

(Then, And so, Exactly, That was)

就是

And so, Exactly, Namely, That is, That was

亦即

Accordingly, Namely, Since