How to say "open" in Arabic
CognateMeaningopen
Arabic · Modern Standard Arabic
مَفْتُوح
maftūḥמפתוח
مفتوح
Hebrew · Modern Hebrew
פתוח
patuakhپَاتُوَاخ
How the two words are related
Cognate
Same Semitic root, same meaning — you already know this word.
Arabic root
ف-ت-حHebrew root
פ-ת-חArabic f-t-ḥ is Hebrew פ-ת-ח exactly, so maftūḥ is Hebrew patuach (פתוח) in Arabic clothing. Even the vowel signs agree: the Hebrew mark patach and the Arabic mark fatḥa are the same word, 'opening' — both name the sound made with an open mouth.
Learn it
On the street
How people actually say it in the spoken dialects, where it differs from the standard word.
Moroccan · Morocco — Casablanca, Rabat, Fes
محْلُول
meḥlūlמחלולA different word: meḥlūl, from ḥell, to open or untie.
In a phrase
الْبَاب مَفْتُوح
al-bāb maftūḥאל-באב מפתוחthe door is open
Feminine
مَفْتُوحَة
maftūḥaמפתוחה