Duty and Pain in the neck

Duty noun - A charge usually of money collected by the government from people or businesses for public use.

Pain in the neck and duty are semantically related. In some cases you can use "Pain in the neck" instead a noun "Duty".

Pain in the neck noun - Something or someone that causes trouble; a source of unhappiness.

Duty and pain in the neck are semantically related. Sometimes you can use "Duty" instead a noun phrase "Pain in the neck".