adjacent vs contiguous

adjacent

• Lying next to, close, or contiguous; neighboring; bordering on. 

• Related to; suggestive of; bordering on. 

• Just before, after, or facing. 

• Next to; beside. 

• Related to; suggestive of; bordering on. 

• Something that lies next to something else, especially the side of a right triangle that is neither the hypotenuse nor the opposite. 

contiguous

• Adjacent; neighboring. 

• Connected; touching; abutting. 

• Connecting without a break.