The science of an-Nahwu (Arabic: ﻋﻠﻢ اﻟﻦحو‎; Indonesian: nahu, syntax; English: syntax) is one of the basic parts of Arabic grammar for knowing the position of words in a sentence and the form of the last letter/trace of a word. Example: نَحَوْةُ نَحْوَالْبَىْتِ I deliberately headed towards home.