معنی کلمه arcane

به معنای سری و محرمانه هم معنی با کلمه confidential که معمولا کاربردی تر است.
مثل
Under the arcane rules of the council, this has to be debated at an Executive Committee meeting
تحت قوانین 'سری' شورا، این موضوع باید در جلسه کمیته اجرایی مورد بحث قرار گیرد.

of a secret or esoteric nature; mysterious

It is not exactly arcane knowledge.

arcane economic theories

Tarn is an arcane word for big puddle and sounds nice.

Others, on the other hand, hearken back to formal arcane rules of courtship.

The whole subject of firearms seems a bit too arcane for the common man.

It is the equivalent, in this rather arcane context, of the delivery up of infringing goods.