A1numeral
وَاحِد
wāḥid
one
Example
عِنْدِي كِتَابٌ وَاحِدٌ
ʿindī kitābun wāḥidun
I have one book
← Root Explorer
Arabic root
و-ح-د
5 words from this root family
A1noun
الْأَحَد
al-aḥad
Sunday
Example
يَوْمُ الْأَحَدِ هُوَ أَوَّلُ يَوْمٍ فِي الْأُسْبُوعِ
yawmu al-aḥadi huwa awwalu yawmin fī al-usbūʿi
Sunday is the first day of the week
Grammar
In the Arab world, Sunday is traditionally the first day of the week
A1adjective
وَحيد
waḥīd
alone / only / sole
Example
هُوَ الوَلَدُ الوَحيد
huwa al-waladu al-waḥīd
He is the only boy
Grammar
Feminine form: waḥīda (وَحيدة). From the same root as wāḥid (واحِد, one) and waḥda (وَحدة, unity).
A2noun
تَوْحِيدٌ
tawḥīd
monotheism / oneness of God
Example
قُلْ هُوَ اللَّهُ أَحَدٌ
qul huwa Allāhu aḥad
Say: He is Allah, the One (112:1)
Grammar
Form II maṣdar from وَحَّدَ (to make one/declare one). Related: أَحَدٌ (one), وَاحِدٌ (one/unique). The central theological concept of Islam.
Culture
Surah al-Ikhlāṣ (112) is called the essence of tawḥīd. The Prophet ﷺ said it equals one-third of the Quran in meaning.
B2noun
وَحْدَانِيَّةٌ
waḥdāniyyah
divine unity / absolute oneness
Example
وَإِلَهُكُمْ إِلَهٌ وَاحِدٌ لَا إِلَهَ إِلَّا هُوَ الرَّحْمَنُ الرَّحِيمُ
wa-ilāhukum ilāhun wāḥidun lā ilāha illā huwa ar-Raḥmānu ar-Raḥīm
And your god is one God. There is no deity except Him, the Most Merciful (2:163)
Grammar
Abstract noun (فَعْلَانِيَّة pattern). From وَاحِدٌ (one). The theological term for God's absolute oneness. Related to تَوْحِيدٌ (q220) but more abstract and philosophical.
Culture
Waḥdāniyyah is the most fundamental concept in Islamic theology — God is not merely 'one among many' but uniquely, absolutely One in essence, attributes, and actions.