[中心「ちゅうしん」]に => With A as the center N2
Miscellaneous
[最中「さいちゅう」] => In the middle of A N3
Time, Situation
くせして => Even though A N2
Contrast,Surprise
へ => Go to N, head to N , Often followed by verbs like 行く/いく, 来る/くる, 向かう/むかう… N5
Particles
かいもなく => Even though A, N2
Contrast,Surprise
かかわらず/かかわりなく => Even though A, Regardless of A; without relation to A N2
Based, Focused, Depending on
なくして => Without A, B (can't be done, wouldn't be, etc.) N1
Conditional, While
しかも => Not only A, but B as well N2
(Not)only, (Not) even
だけしか => Only A can B , Nothing except N3
Not only, Not even
しか~ない => Only , no more than , There's only N5
Amount
はともかく => Whether or not A, B (is true) N2
Based, Focused, Depending on
に[難「むずか」]くない => It's not hard to A N1
Adjectival, Descriptions