Word.ws English Dictionary

ADT

ADT is the initialism of Atlantic Daylight Time.

ADT is the abbreviation of Adult.

ADT is the initialism of astronomy diagnostic test.

ADT is the initialism of Automatic Double Tracking.

ADT is the initialism of acknowledged data transfer.

ADT is the initialism of advanced DRAM technology.

Meaning of Atlantic Daylight Time

Proper noun

Atlantic Daylight Time

  1. The time of day in the time zone that encompasses most of Labrador and the Maritimes in Canada from the second Sunday of March to the first Sunday of November; it is three hours behind Coordinated Universal Time (UTC-3) and a hour ahead of Atlantic Standard Time
    Synonyms:
    ADT

Meaning of Adult

Noun

adult (plural adults)

  1. An animal that is full-grown.
    • The young not only differs from the adult by the presence of its gills, but its feet are only developed by degrees, and in several genera there are also a deciduous beak and tail, and intestines of a different form1840, Georges Cuvier, Edward Blyth, Robert Mudie, George Johnston, J.O. Westwood, “The fourth order of reptiles—The batrachians”, in Cuvier's Animal Kingdom, page 286
    Synonyms:
    grown up
  2. A person who has reached the legal age of majority.

See all 12 meanings of adult

Forms of ADT

pluralADTs

Questions about ADT

What is ADT the initialism of?
ADT is the initialism of Atlantic Daylight Time.

Words near ADT in the dictionary

  1. adsuki beans
  2. adsurgent
  3. Adswood
  4. adsymphyseal
  5. adsymphysial
  6. ADT
  7. adtech
  8. adtevac
  9. ADTs
  10. ADU
  11. aduance

Source and license

Adapted from Wiktionary: ADT (page history and authors); Atlantic Daylight Time (page history and authors); adult (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.

Last updated:

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