DL

See also: Appendix:Variations of "dl"

Translingual

Etymology

Specified in ISO 269 as an initialism of dimension lengthwise. Probably a backronym from German DIN lang, so named for the Deutsches Institut für Normung (German Institute for Standardisation Registered Association) and lang (“long”) (in reference to its shape).

Symbol

DL

1. (international standards) ISO 269 standard envelope size of 220 mm × 110 mm (8.66 in × 4.33 in), with a surface area of 242 cm² (37.5 sq in).

See also

ISO 216/269 paper sizes

A series: 4A0 2A0 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 B series: B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 C series: C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10

English

Alternative forms

• D.L., D. L.
• (download): dl, d/l, D/L

Noun

DL (countable and uncountable, plural DLs)

1. (computing) Initialism of download.

   Antonym: UL

2. (military, nautical) Initialism of light destroyer, a variant of the destroyer type of warship.
3. (military, nautical) Initialism of destroyer leader, a variant of the destroyer type of warship.
4. Initialism of driver's license.
5. (baseball) Initialism of disabled list.
6. Initialism of down low.
7. (technology) Initialism of distribution list.
8. (ABDL) Initialism of diaper lover.
9. (machine learning) Initialism of deep learning.
   • 2021, Savas Yildirim, Meysam Asgari-Chenaghlu, Mastering Transformers […] , Packt Publishing Ltd, →ISBN, page 26:

     Before Transformer models, the attention mechanism was proposed as a helper for improving conventional DL models such as RNNs.

10. (telegraphy) Initialism of day letter.

    Coordinate term: NL

Verb

DL (third-person singular simple present DLs, present participle DLing, simple past and past participle DLed or DL'd)

1. (computing) Initialism of download.

   Antonym: UL

2. (baseball, transitive, informal) To place on the disabled list.
   • 1996 June 3, Joe in MA [username], “Re: Jim Edmonds' return date?”, in rec.sport.baseball.fantasy‎^[1] (Usenet):

     After 7 years of being in a rot league, I have learned that "day to day" in baseballese means "at least a week, maybe more, and maybe after the week, then we may DL him."

Anagrams

• LD, Ld.