Word.ws English Dictionary

pen register

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

Noun

pen register (plural pen registers)

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

Forms of pen register

pluralpen registers

Questions about pen register

What does pen register mean?
Pen register means a device (originally fitted with a pen, but now purely electronic) that records all numbers called from a particular telephone line.
What part of speech is pen register?
Pen register is a noun.
What is the plural of pen register?
The plural of pen register is pen registers.

Words near pen register in the dictionary

  1. pen pictures
  2. pen portrait
  3. pen portraits
  4. pen pusher
  5. pen pushers
  6. pen register
  7. pen registers
  8. pen shell
  9. pen shells
  10. pen spinning
  11. pen test

Source and license

Adapted from Wiktionary: pen register (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “pen register.” Word.ws, https://word.ws/pen_register. Based on Wiktionary, CC BY-SA 4.0.