~んがため(に)/~んがための      => in order to ~ N1
ため(に) => For, because… N4
Cause and Effect
~にしてはじめて      => since at ~ N1
めったに~ない => hardly; rarely; seldom N3
めったにない => Rarely N3
Degree. Level, Amount
そのため(に) => hence; for that reason; because of ~ N3
かりそめにも => Whatever it is..., do not.... N1
Position, perspective
にめんして => having a space looking towards N N2
Situation, case
にめんして => having a space looking towards N N2
Spatial relations
ひとつには…ためである => Partly because of ... N3
Cause, reason
~づめだ      => full of N1
~ためしに…てみる => to attempt, to test, to try out N1
Invite and advise