Details and Order of the day

Details noun - True confidential information.

Order of the day and details are semantically related In some cases you can use "Order of the day" instead a noun "Details".

Order of the day noun - The order of business for an assembly on a given day.

Details and order of the day are semantically related in program topic. Sometimes you can use "Details" instead a noun phrase "Order of the day", if it concerns topics such as agenda.