How to say "eighteen" in Arabic
CognateMeaningeighteen
Arabic · Modern Standard Arabic
ثَمَانِيَةَ عَشَرَ
thamāniyata ʿasharת'מאניה עשר
ثمانية عشر
Hebrew · Modern Hebrew
שמונה עשר
shmona asarشْمُونَا أَسَار
How the two words are related
Cognate
Same Semitic root, same meaning — you already know this word.
Arabic root
ث-م-نHebrew root
ש-מ-נThe ש-מ-נ skeleton of שמונה shows up whole inside thamāniyata (Arabic ث answering Hebrew ש, as always), then gets the same עשר/ʿashar treatment as every other teen.
Learn it
On the street
How people actually say it in the spoken dialects, where it differs from the standard word.
Levantine · Palestine, Jordan, Lebanon, Syria
تَمَنْتَعَش
tamantaʿashתמנתעשDialect drops the middle vowel and softens ث to t: tamantaʿash.
Egyptian · Cairo and the Nile Delta
تَمَنْتَاشَر
tamantāsharתמנתאשרMoroccan · Morocco — Casablanca, Rabat, Fes
تْمنْطَاش
tmenṭāshתמנטאשIn a phrase
ثَمَانِيَ عَشْرَةَ سَنَة
thamāniya ʿashrata sanaת'מאני עשרה סנהeighteen years