plural of parish register

plural of registered mail

plural of register plate

In rope-making, a disc having holes arranged so as to give the yarns passing through them their proper position for entering into the general twist.

plural of register grate

A grate with a shutter behind it.

The highest register of the human voice, lying above the modal register and falsetto.

plural of whistle register

Of an instrument or machine: recording its own operations.

A device (originally fitted with a pen, but now purely electronic) that records all numbers called from a particular telephone line.