العين

In a sentence

• العين مرآة الروح.

  The eye is the mirror of the soul.

  Here, 'العين' refers to the physical organ, the eye, that is metaphorically described.

• يعتمد هذا النظام على العين المجردة.

  This system relies on the naked eye.

  In this context, 'العين' still refers to the eye, emphasizing its capability for unaided observation.

• كانت العين على مفترق الطرق ذات أهمية استراتيجية.

  The spring at the crossroads had strategic importance.

  Here, 'العين' refers to a natural water source, such as a spring, illustrating a different usage of the word.