always the same

(chiefly in the negative) To have any knowledge (about something); have a clue. / Used other than figuratively or idiomatically: see have, first, idea.

To not know anything about something.

To not know at all. / To be mistaken; to not have a correct idea.

A collection of clinical signs and symptoms similar to hypoglycemia but without the demonstrably low blood glucose levels found in that condition.

plural of identity document

A document which may be used to prove a person's identity.

(engineering) A wheel placed between two others to transfer motion from one to the other without changing the direction.

plural of idle wheel

(law enforcement) A process by which a witness confirms the identity of a criminal suspect, by viewing the suspect together with other people who were not involved in the crime.