ちゅう => currently; during; at some point; throughout; before the end of ~ N5
Time
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
はもちろん => not to mention; not only … but also ~ N3
はもちろん/はもとより => Although A is given/obvious; B N3
List, Examples
うちに => While... N3
どちら => Where N5
Doubt
~みこみちがい / みこみはずれ> => ~Contrary to expectations N1
Beyond expectations
たちまち  => Immediately, Quickly, Suddenly, In a moment or flash N2
Status
ここ/そこ/あそこ/こちら/そちら/あちら => here / there / over there N5
Spatial relations
~ごとき/ごとく      => like; as if; the same as ~ N1
うちに => While; Before ~ N2