ك ذ ب (k-dh-b): Every Word From This Root in the Quran

Updated October 2026

Quran Root Words > Root k-dh-b

The Arabic root ك ذ ب (k-dh-b) occurs 282 times in the Quran, in 9 different words, and is number 31 of the Quran's 1,642 roots by frequency. The most frequent word is كَذَّبَ (kadhdhaba), 176 times, followed by كَذِب (kadhib), 33 times.

What the root k-dh-b means

The Quranic Arabic Corpus glosses the root's form I verb كَذَبَ (kadhaba) as "to deny, to lie". Its other verbs are glossed there as follows: كَذَّبَ (kadhdhaba), form II, "to deny, to reject".

All three letters of k-dh-b, ك ذ ب, are consonants with no weak letter among them, and every word the Quran builds on the root keeps all three in the same order. In كَذَّبَ (kadhdhaba) and كَذِب (kadhib) only the vowels and the added letters differ.

Every word from the root k-dh-b in the Quran

The Quran builds 9 different words on k-dh-b. The table lists them from most to least frequent, with the spelling the corpus gives each one, its word type, its meaning and its number of occurrences. Verbs make up 187 of the root's 282 occurrences, in forms I and II.

Every word from the root ك ذ ب (k-dh-b) in the Quran, with its occurrences in the Quranic Arabic Corpus 0.4
ArabicTransliterationWord typeMeaningOccurrences
كَذَّبَkadhdhabaVerb (form II)to deny, to reject176
كَذِبkadhibNoun"a lie"33
كَٰذِبkādhibActive participle"a liar"32
مُكَذِّبِينmukadhdhibīnActive participle (form II)"deniers"21
كَذَبَkadhabaVerb (form I)to deny, to lie11
كَذَّابkadhdhābNominal"a liar"5
كِذَّابkidhdhābVerbal noun (form II)"any falsehood"2
مَكْذُوبmakdhūbPassive participle"be belied"1
تَكْذِيبtakdhībVerbal noun (form II)"denial"1
ك ذ بk-dh-bAll words from k-dh-b282

Meanings in quotation marks are MASAQ word-by-word glosses, the others the corpus dictionary's, and the word types follow the dictionary. The Arabic is the corpus's, in the Quran's own spelling, so كَٰذِب (kādhib) keeps its small dagger alif. Every count on this page is a lemma count from the Quranic Arabic Corpus, version 0.4. We compared each of these 9 counts, and the root total of 282, with the corpus's own dictionary entry for k-dh-b, and all of them match.

The root k-dh-b in the verses of the Quran

Words from k-dh-b appear in 257 verses spread over 68 of the Quran's 114 suras. Sura 55 has the most of them, 32 verses. Below are the shortest verses in which the root's most frequent words occur, with the word marked. The text is the Uthmani text of Tanzil, and each reference opens the verse on quran.com with translations.

كَذَّبَ (kadhdhaba), 176 times

فَكَذَّبَ وَعَصَىٰ
Quran 79:21; word-by-word gloss of the marked word: "but he denied"

وَكَذَّبَ بِٱلْحُسْنَىٰ
Quran 92:9; word-by-word gloss of the marked word: "and denies"

ٱلَّذِى كَذَّبَ وَتَوَلَّىٰ
Quran 92:16; word-by-word gloss of the marked word: "denied"

كَذِب (kadhib), 33 times

قُلْ إِنَّ ٱلَّذِينَ يَفْتَرُونَ عَلَى ٱللَّهِ ٱلْكَذِبَ لَا يُفْلِحُونَ
Quran 10:69; word-by-word gloss of the marked word: "the lie"

وَأَنَّا ظَنَنَّآ أَن لَّن تَقُولَ ٱلْإِنسُ وَٱلْجِنُّ عَلَى ٱللَّهِ كَذِبًا
Quran 72:5; word-by-word gloss of the marked word: "any lie"

كَٰذِب (kādhib), 32 times

نَاصِيَةٍ كَٰذِبَةٍ خَاطِئَةٍ
Quran 96:16; word-by-word gloss of the marked word: "lying"

لَيْسَ لِوَقْعَتِهَا كَاذِبَةٌ
Quran 56:2; word-by-word gloss of the marked word: "a denial"

Learning the words of k-dh-b

كَذَّبَ (kadhdhaba), no. 59 with 176, is on our list of the 100 most common Quran words, which counts it the same way. Its verbs follow the patterns of the Arabic verb forms (forms I and II), and our Arabic verb conjugator conjugates any root in any form, so you can see how كَذَّبَ changes for person and tense. The root k-dh-b is one of the 1,642 roots you can search in our Quran root word explorer; for the rest of the language, see our Arabic learning resources by level.

Frequently asked questions

How many times is the root k-dh-b used in the Quran?

282 times, in 9 different words, according to the Quranic Arabic Corpus. The most frequent is كَذَّبَ (kadhdhaba), which occurs 176 times.

What does the Arabic root ك ذ ب (k-dh-b) mean?

The Quranic Arabic Corpus glosses the root's form I verb كَذَبَ (kadhaba) as "to deny, to lie". The root gives the Quran 9 words in all.

Which verb forms of k-dh-b are used in the Quran?

Form II, كَذَّبَ (kadhdhaba), 176 times and form I, كَذَبَ (kadhaba), 11 times. Together the verbs account for 187 of the root's 282 occurrences.