تاثیر

In a sentence

• این کتاب تاثیر عمیقی بر من گذاشت.

  This book had a deep impact on me.

  In this context, "تاثیر" is used as a noun to signify the effect or impact that a subject (the book) has on someone (me).

• باران تاثیر مثبتی بر رشد گیاهان دارد.

  Rain has a positive effect on the growth of plants.

  Here, "تاثیر" again acts as a noun to express the beneficial result that rain has on plant growth.

• معلم سعی کرد که تاثیری مثبت بر دانش‌آموزان داشته باشد.

  The teacher tried to have a positive influence on the students.

  In this sentence, "تاثیر" is employed as a noun to describe the aim of creating a beneficial or constructive outcome or influence.