Lemma ثُّلُث has 5 unique word forms and appears 6 times in the Quran.

Word Translation Occurrences
ثُلُثَا two thirds 2
ثُلُثَيِ two-thirds 2
ٱلثُّلُثُۚ (is) one third 2
ٱلثُّلُثِۚ the third 2
ٱلثُّلُثَانِ two thirds 2
وَثُلُثَهُۥ and a third of it 2