Word.ws English Dictionary

DDOS

/ˈdiːˌdɒs/

DDOS is the alternative form of DDoS.

Noun (1) capitalized: DDoS

DDoS (plural DDoSes)

  1. (Internet, computer security) A distributed denial-of-service attack, one that originates from many different (geographically and network topographically) sources, on a network of networks such as the Internet.
    • Some bots help refresh your Facebook feed or figure out how to rank Google search results; other bots impersonate humans and carry out devastating DDoS attacks.2017 January 31, Adrienne LaFrance, “The Internet Is Mostly Bots”, in The Atlantic, archived from the original on 04 Feb 2023

Verb capitalized: DDoS

DDoS (third-person singular simple present DDoSes, present participle DDoSing, simple past and past participle DDoSed or DDoS'd)

  1. (Internet, transitive, computer security) To attack by DDoS.
    • Stuart Staniford, president of Silicon Defense in Eureka, Calif., notes, however, that if the zombie computers “had a long target list and a control mechanism to allow dynamic retargeting, [they] could have DDoSed servers used to map addresses to contact information, the ones used to distribute...2001, Scientific American, page 51
    • On February 9, 2000, web sites such as Yahoo! and CNN were DDoSed off the Internet, mostly by spoofed smurf attacks.2003, Stephen Northcutt, Inside Network Perimeter Security: The Definitive Guide to Firewalls, VPNs, Routers, and Intrusion Detection Systems, New Riders, →ISBN, page 9

Noun (2) capitalized: DDOs

DDOs

  1. (plural) plural of DDO

Forms of DDOS

Noun
pluralDDOSes
pluralDDoSes
alternative formDDOS
Verb
third-person singular presentDDOSes
present participleDDOSing
past participleDDOSed
pastDDOSed
third-person singular presentDDoSes
present participleDDoSing
past participleDDoSed
pastDDoSed
past participleDDoS'd
pastDDoS'd

Questions about DDOS

What does DDOS mean?
DDOS means a distributed denial-of-service attack, one that originates from many different (geographically and network topographically) sources, on a network of networks such as the Internet.
What is DDOS the alternative form of?
DDOS is the alternative form of DDoS.
What part of speech is DDOS?
DDOS can be a noun or a verb.
How do you pronounce DDOS?
DDOS is pronounced /ˈdiːˌdɒs/.
What is the plural of DDOS?
The plural of DDOS is DDOSes.

Words near DDOS in the dictionary

  1. DDNP
  2. DDNS
  3. ddNTP
  4. ddNTPs
  5. DDO
  6. DDOS
  7. DDoS'd
  8. DDOSed
  9. DDOSes
  10. DDOSing
  11. DDP

Source and license

Adapted from Wiktionary: DDOS (page history and authors); DDoS (page history and authors); DDOs (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: “DDOS.” Word.ws, https://word.ws/ddos. Based on Wiktionary, CC BY-SA 4.0.