Arabic vocabulary
عَقْلِ is how you say “reason” in Arabic. Hear it pronounced and see it used in real example sentences from classical texts below.
ʿAql is the standard Arabic word for reason or intellect, the quality that makes a person ʿāqil ('rational, sane'). Classical lexicographers connect this abstract sense to the word's literal, primary meaning of binding or restraining — as when a camel's leg is hobbled with a ʿiqāl — reason being what 'restrains' a person from improper conduct. The same root also carries legal-tribal usage: ʿaql for paying or exacting the bloodwit (diya), and al-ʿāqilah for the kin-group collectively responsible for it.
Definitions synthesised from Lane's Arabic-English Lexicon (E. W. Lane, 1863–1893).
وَبَاعِثُ الْعَقْلِ وَالدِّينِ يَمْنَعُ مِنْهُ
And the prompting of reason and religion prevents him from it.
العقل — the reason. A definite noun ('reason') owned by the 'prompting' before it, closing that 'of' pairing as 'the prompting of reason'. As the owner term it takes the genitive ending. The al- supplies 'the' without a separate word.
From: Patience and the Human Self →وَلِهَذَا أَجَابَ مُعَاوِنُ الشَّرْعِ بِالْتَغْرِيبِ وَالْتَرْهِيبِ يَقْوَى جُنْدُ الْعَقْلِ
For this reason an assistant of the Shari'a replied: By alienation and intimidation the forces of reason become stronger.
الْعَقْلِ — of reason. The owning half of 'the forces OF reason', made definite by al- and in the genitive as the possessor. Placed directly after the head-noun with no word for 'of', it both completes the phrase and makes the whole subject definite.
From: Guarding the Heart from Heedlessness →OpenArabic teaches words like عَقْلِ through real bilingual reading with native audio and spaced-repetition practice.
Get the appI joke in it as people of merit do, and jesting sometimes clears the mind.
الْعَقْلِ — the mind. The al- makes this definite, 'the' mind, and it closes the 'clearing of...' pairing as its owner. Sitting in the owned-by slot, it carries the genitive 'of' ending, locking the two words into 'the clearing of the mind'.