This is the 5959th most frequent Arabic word.
والتجارية
"And commercial" or "and trade-related."
Here, 'والتجارية' is used as an adjective meaning 'commercial', in conjunction with 'الصناعي' (industrial) to describe the exhibition.
يشمل المعرض الصناعي والتجارية العديد من الشركات.
The industrial and commercial exhibition includes many companies.
In this sentence, 'والتجارية' functions as an adjective describing 'السياسات' (policies), indicating that the policies are related to trade or commerce.
السياسات الاقتصادية والتجارية تؤثر على السوق.
Economic and commercial policies affect the market.
'والتجارية' is used as an adjective to describe 'القوانين' (laws), showing that these laws pertain to the realm of commerce.