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Captcha is the bane of the Internet. I can't figure them out myself half the time!
Matt Mullenweg

Meaning of "captcha" in the English dictionary

Dictionary
DICTIONARY
section

ETYMOLOGY OF THE WORD CAPTCHA

Acronym for C(ompletely) A(utomated) P(ublic Turing Test to) T(ell) C(omputers and) H(umans) A(part).
info
Etymology is the study of the origin of words and their changes in structure and significance.
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PRONUNCIATION OF CAPTCHA

captcha  [ˈkæptʃə] play
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GRAMMATICAL CATEGORY OF CAPTCHA

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Captcha is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES CAPTCHA MEAN IN ENGLISH?

CAPTCHA

A CAPTCHA is a type of challenge-response test used in computing to determine whether or not the user is human. The term was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper of Carnegie Mellon University and John Langford of IBM. The most common type of CAPTCHA was first invented by Mark D. Lillibridge, Martin Abadi, Krishna Bharat and Andrei Z. Broder. This form of CAPTCHA requires that the user type the letters of a distorted image, sometimes with the addition of an obscured sequence of letters or digits that appears on the screen. Because the test is administered by a computer, in contrast to the standard Turing test that is administered by a human, a CAPTCHA is sometimes described as a reverse Turing test. This term is ambiguous because it could also mean a Turing test in which the participants are both attempting to prove they are the computer. This user identification procedure has received many criticisms, especially from disabled people, but also from other people who feel that their everyday work is slowed down by distorted words that are illegible even for users with no disabilities at all.

Definition of captcha in the English dictionary

The definition of captcha in the dictionary is a test in which the user of a website is asked to decipher a distorted image, used to protect the website against automated attacks.

WORDS THAT RHYME WITH CAPTCHA


adventure
ədˈvɛntʃə
agriculture
ˈæɡrɪˌkʌltʃə
architecture
ˈɑːkɪˌtɛktʃə
capture
ˈkæptʃə
culture
ˈkʌltʃə
enrapture
ɪnˈræptʃə
feature
ˈfiːtʃə
furniture
ˈfɜːnɪtʃə
future
ˈfjuːtʃə
insculpture
ɪnˈskʌlptʃə
K-capture
ˈkeɪˌkæptʃə
Lepcha
ˈlɛptʃə
literature
ˈlɪtərɪtʃə
nature
ˈneɪtʃə
picture
ˈpɪktʃə
rapture
ˈræptʃə
recapture
riːˈkæptʃə
rupture
ˈrʌptʃə
scripture
ˈskrɪptʃə
sculpture
ˈskʌlptʃə

WORDS THAT BEGIN LIKE CAPTCHA

captain
Captain Cooker
captain of industry
captain´s biscuit
captain´s mast
captaincy
captainry
captainship
captan
caption
captionless
captious
captiously
captiousness
captivance
captivate
captivating
captivatingly
captivation
captivator

WORDS THAT END LIKE CAPTCHA

a la plancha
bacha
betcha
cancha
cha
cha-cha
chicha
concha
cutcha
datcha
gertcha
gotcha
kadaitcha
kurdaitcha
kutcha
kwacha
La Mancha
mocha
pacha
wotcha

Synonyms and antonyms of captcha in the English dictionary of synonyms

SYNONYMS

Translation of «captcha» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF CAPTCHA

Find out the translation of captcha to 25 languages with our English multilingual translator.
The translations of captcha from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «captcha» in English.

Translator English - Chinese

验证码
1,325 millions of speakers

Translator English - Spanish

Captcha
570 millions of speakers

English

captcha
510 millions of speakers

Translator English - Hindi

कैप्चा
380 millions of speakers
ar

Translator English - Arabic

CAPTCHA
280 millions of speakers

Translator English - Russian

captcha
278 millions of speakers

Translator English - Portuguese

captcha
270 millions of speakers

Translator English - Bengali

ক্যাপচা
260 millions of speakers

Translator English - French

captcha
220 millions of speakers

Translator English - Malay

Captcha
190 millions of speakers

Translator English - German

captcha
180 millions of speakers

Translator English - Japanese

キャプチャ
130 millions of speakers

Translator English - Korean

보안 문자
85 millions of speakers

Translator English - Javanese

Captcha
85 millions of speakers
vi

Translator English - Vietnamese

Captcha
80 millions of speakers

Translator English - Tamil

கேப்ட்சா
75 millions of speakers

Translator English - Marathi

कॅप्चा
75 millions of speakers

Translator English - Turkish

Captcha
70 millions of speakers

Translator English - Italian

captcha
65 millions of speakers

Translator English - Polish

captcha
50 millions of speakers

Translator English - Ukrainian

captcha
40 millions of speakers

Translator English - Romanian

captcha
30 millions of speakers
el

Translator English - Greek

captcha
15 millions of speakers
af

Translator English - Afrikaans

captcha
14 millions of speakers
sv

Translator English - Swedish

captcha
10 millions of speakers
no

Translator English - Norwegian

captcha
5 millions of speakers

Trends of use of captcha

TRENDS

TENDENCIES OF USE OF THE TERM «CAPTCHA»

The term «captcha» is very widely used and occupies the 4.181 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Very widely used
98
/100
The map shown above gives the frequency of use of the term «captcha» in the different countries.
Principal search tendencies and common uses of captcha
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «captcha».

FREQUENCY OF USE OF THE TERM «CAPTCHA» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «captcha» during the past 500 years. Its implementation is based on analysing how often the term «captcha» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about captcha

EXAMPLES

QUOTES WITH «CAPTCHA»

Famous quotes and sentences with the word captcha.
1
Matt Mullenweg
Captcha is the bane of the Internet. I can't figure them out myself half the time!

10 ENGLISH BOOKS RELATING TO «CAPTCHA»

Discover the use of captcha in the following bibliographical selection. Books relating to captcha and brief extracts from same to provide context of its use in English literature.
1
Advances in Computer Vision and Information Technology
For example, humans can read distorted text, but current computer programs cannot. This paper addresses algorithm used for breaking CAPTCHA.CAPTCHA breaking means recognizing the characters in distorted image. The algorithm has  ...
K. V. Kale, Ramesh Raybhan Manza, 2008
2
Create a simple anti-spam CAPTCHA verification code: PHP ...
call the function to set the captcha answer in $_SESSION['captcha'], and gets the numbers $nrs = setCaptcha('captcha'); // sets the captcha question $ver_question = $nrs[0] .'&nbsp;+&nbsp;'. $nrs[1]; ?> <!doctype html> <html lang="en"> ...
MarPlo
3
Pro Zend Framework Techniques: Build a Full CMS Project
You can minimize this in a number of ways (such as asking a simple mathematical question), but CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is the most effective at the time of this writing.
Forrest Lyman, 2009
4
Natural Language Processing and Information Systems: 14th ...
The second application is a CAPTCHA system. Today, the Internet is used to offer different services to users. Most of these services are designed for human users, but unfortunately some computer programs are designed which abuse these ...
Helmut Horacek, Elisabeth Metais, Rafael Munoz, 2010
5
INetSec 2009 - Open Research Problems in Network Security: ...
2.8 Human Solving CAPTCHAs are designed to be solved by humans, but there is anongoingmarket of CAPTCHA solving services [38]21 (typically located in an area where relatively cheap labor can be found) and relay attacks, that present ...
Jan Camenisch, Dogan Kesdogan, 2009
6
Emerging Challenges for Security, Privacy and Trust: 24th ...
The first requirement implies that user studies are necessary in order to evaluate the effectiveness of CAPTCHA. The latter ones imply that a test with a new property is required: the test must be easy to generate, but intractable to pass without ...
Dimitris Gritzalis, Javier Lopez, 2009
7
Drupal 7 Bible
See Chapter 10 for additional details on configuring per-content-type preferences , including how to access the commenting configuration for each content type. n The CAPTCHA system is a test presented by a computer to a human to verify ...
Ric Shreves, Brice Dunwoodie, 2011
8
Computational Collective Intelligence. Technologies and ...
CAPTCHA attacks are various and evolving with time. For different design of CAPTCHA, hackers also break it in different ways. There are no news at all that Yahoo, Microsoft and Google CAPTCHA are broken. In PWNtcha's web page [8], the ...
Jeng-Shyang Pan, Shyi-Ming Chen, Ngoc-Thanh Nguyen, 2010
9
Professional Ruby on Rails
Test two verifies that the CAPTCHA can generate multiple string representations of the same operation, as follows: def test_string_representation assert_equal ([“ 7”, “seven”, “the number of days in a week”], MathCaptcha::OPTIONS[7]) ...
Noel Rappin, 2008
10
Information Security: Principles and Practice
Consider the visual CAPTCHA known as Gimpy [249]. a. Explain how EZ Gimpy and Hard Gimpy work. b. How secure is EZ Gimpy compared to Hard Gimpy? c. Discuss the most successful known attack on each type of Gimpy. 19.
Mark Stamp, 2011

10 NEWS ITEMS WHICH INCLUDE THE TERM «CAPTCHA»

Find out what the national and international press are talking about and how the term captcha is used in the context of the following news items.
1
Video Shootout: Home Free vs. Keith Urban vs. Jason Aldean
A captcha has been put in place to prevent cheating. If you cannot read the captcha, press the top blue button next to it to refresh to a new one, ... «The Boot, Jul 15»
2
Watch out for these dodgy British Gas and Home Office emails, they …
They also recommended “when confronted with a captcha code [people should] use the phone to contact the organisation,” the original ... «Business Insider Australia, Jul 15»
3
Distil Networks Raises $21M To Block Malicious Bots
If it's not sure, it offers a test like a Captcha box, a chat window or an email to test the findings. We've all seen these types of challenges on ... «TechCrunch, Jun 15»
4
Scalpers use computer bots to vacuum up bulk tickets
"We take a comprehensive approach to fighting bots, investing millions of dollars in technology to block bots, such as our Captcha security ... «Stuff.co.nz, Jun 15»
5
The All-Star vote hack that never happened
It might be worth explaining the captcha a bit. Why are you asked to type out that weirdly- shaped sequence of numbers on each vote? «Royals Review, Jun 15»
6
Ads that prove you're human
The ad unit is a captcha, called Type-In, which allows brands to buy ... rather than the typical mix of letters and numbers a captcha asks for. «Media In Canada, Jun 15»
7
Trailer for Indie Short "Captcha" - 1940s Steampunk Thriller with …
The film is called Captcha and it's a film noir spy thriller set in the 1940's in a universe where London is quite steampunk, which is quite a ... «Three If By Space, May 15»
8
Facebook serves up shaved, pierced, tattooed 'butterfly' as CAPTCHA
We then asked Facebook to confirm that it uses this kind of CAPTCHA and, making sure we didn't find ourselves on the wrong end of a sexual ... «The Register, Apr 15»
9
The evils of captcha explained by a blind person
Whoever forgets their online banking password or any other account with sensitive data must pass the dreaded captcha test. This is an image ... «West - Welfare Society Territory, Mar 15»
10
Podec is 1st trojan to trick Captcha into thinking it's human
SINGAPORE - Kaspersky Lab has said it has discovered the first malware that can outwit the Captcha image recognition system into thinking ... «AsiaOne, Mar 15»

REFERENCE
« EDUCALINGO. Captcha [online]. Available <https://educalingo.com/en/dic-en/captcha>. Feb 2021 ».
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