3-letter words that end in 21
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3 letter words ending with 21
- rfc 821 — (messaging, standard) The original RFC defining SMTP. Updated by RFC 2821.
4 letter words ending with 21
- v.21 — (protocol, standard) An ITU-T modem protocol for 300 bps two-wire full-duplex communications using Frequency Shift Keying modulation. All modern modems support both V.21 and the close variant, Bell 103.
- x.21 — (communications, standard) A digital signaling interface recommended by ITU-T that includes specifications for DTE/DCE physical interface elements, alignment of call control characters and error checking, elements of the call control phase for circuit switched services, data transfer at up to 2 Mbps, and test loops. 64 kbps is the most commonly used transfer rate.
- rfc 1321 — (messaging, standard) The RFC defining the Message Digest 5 algorithm.
- rfc 1521 — (messaging, standard) An RFC defining Multipurpose Internet Mail Extensions (MIME). This RFC has been obsoleted by RFC 2045, RFC 2046, RFC 2047, RFC 2048, RFC 2049, and BCP0013.
- rfc 2821 — (networking, standard) The RFC describing SMTP. RFC 2821 supersedes RFC 821.
7 letter words ending with 21
- mpeg-21 — (compression, standard, algorithm, file format) A file format designed to merge very different things in one object, so you can store interactive material in this format (audio, video, questions, answers, overlays, non-linear order, calculation from user inputs, etc.)
On this page, we collect all 3-letter words ending in 21. It’s easy to find right word with a certain length. It is the easiest way to find 3-letter word that ends in 21 to use in Scrabble or Crossword puzzles.