This is the 554th most frequent Arabic word.
مرحلة
Stage or phase.
مرحلة is used here to indicate a specific period of age, namely 'childhood' as a phase within human development.
الطفولة هي مرحلة عمرية مميزة.
Childhood is a distinct age stage.
Here, مرحلة refers to the sequential steps or phases through which a project progresses toward completion.
كل مشروع يمر عبر عدة مراحل حتى يكتمل.
Every project goes through several stages until it is completed.
مرحلة is used here to mean a 'stage' or 'phase' in someone's life, highlighting a period characterized by distinct circumstances.