பொருள் : The person who holds the secretaryship of the Department of Transportation.
							எடுத்துக்காட்டு : 
							Johnson appointed Alan S. Boyd as the first Transportation Secretary.
							
ஒத்த சொற்கள் : transportation secretary
பொருள் : The position of the head of the Department of Transportation.
							எடுத்துக்காட்டு : 
							The post of Transportation Secretary was created in 1966.
							
ஒத்த சொற்கள் : transportation secretary