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Arabic root

ا-ل-ف

6 words from this root family

A1numeral
أَلْف
alf

one thousand

Example
أَلْفُ لَيْلَةٍ وَلَيْلَةٍ
alfu laylatin wa-laylatin
One Thousand and One Nights
B2verb
أَلَّفَ
allafa

to compose / to author

Example
أَلَّفَ أَكثَرَ مِن عِشرينَ كِتابًا.
allafa akthara min ʿishrīna kitāban.
He authored more than twenty books.
A2numeral
أَلْفَانِ
alfāni

two thousand

Example
الْإِيجَارُ أَلْفَانِ دُولَارٍ شَهْرِيًّا
al-ījāru alfāni dūlārin shahriyyan
The rent is two thousand dollars per month
Grammar

2000 uses the dual form of أَلْف: أَلْفَانِ (nominative) / أَلْفَيْنِ (accusative/genitive).

A2numeral
ثَلَاثَةُ آلَافٍ
thalāthatu ālāfin

three thousand

Example
اِشْتَرَى سَيَّارَةً بِثَلَاثَةِ آلَافِ دِينَارٍ
ishtarā sayyāratan bi-thalāthati ālāfi dīnārin
He bought a car for three thousand dinars
Grammar

3-10 thousand use the broken plural آلَاف. Because أَلْف is masculine, the units 3-10 appear in their with-taa form (ثَلَاثَة, أَرْبَعَة...) following reverse polarity. 11+ thousand use the singular أَلْف.

A2numeral
عَشَرَةُ آلَافٍ
ʿasharatu ālāfin

ten thousand

Example
رَاتِبُهُ عَشَرَةُ آلَافِ رِيَالٍ
rātibuhū ʿasharatu ālāfi riyālin
His salary is ten thousand riyals
A2numeral
مِئَةُ أَلْفٍ
miʾatu alfin

one hundred thousand

Example
عَدَدُ السُّكَّانِ مِئَةُ أَلْفِ نَسَمَةٍ
ʿadadu as-sukkāni miʾatu alfi nasamatin
The population is one hundred thousand people