Peji rino rinodakuverengwa richi gadziriswa ne kuwedzerwa ne vane ruzivo. Sahara (Chiarabhu: الصحراء الكبرى‎, aṣ-ṣaḥrāʼ al-kubrá, 'Gwenga Huru') igwenga ririmu ziwumbe reAfurika. Rine ruwa re9,200,000 maskeya kiromita (3,600,000 skw mi), ndiro gwenga rinopisa rakakura kwzavo pasirose uye igwenga rechitatu mukukura pasirose, ridiki kumagwenga eAndakitika ne Maodzanyemba eAkitiki. Zita rekuti "Sahara" rinobva kushoko reChiarabhu rekuti 'gwenga' mufomu rechikadzi, pacharo i-ṣaḥra' (صحراء ), pakuwanda ṣaḥārā (صَحَارَى ), ṣaḥār (صَحَار), ṣaḥrāwāt (صَحْارَاوَات), ṣaḥāriy (صَحَارِي). Gwenga re Sahara rinosanganisa ruzhinji rwe Maodzanyemba eAfurika, kusiya rijoni rinorimika repakosti yebhahari yeMedhiteraniya, Makomo eAdhirasi (Atlas) eMagaharibhi (Maghreb), uye Mupata weNairi muIjipita uye Sudhani. Rinotambanuka kubva kuBhahari Dzvuku kumabvazuva uye Medhiteraniya kumaodzanyemba kusvika kuGungwa reAtirandiki kumadokero, uko mamiriro ezvinhu anoshanduka zvishoma nezvishoma kubva mugwenga kuenda kumapani emahombekombe. Kuchamhembe, kwakasungwa neSaheru, bhande renzvimbo yakaoma senge Savhana yakatenderedza Mupata weRwizi reNaija neRijoni yeSudhani yeAfurika ye kuZasi kweSahara.