This is the 245th most frequent Arabic word.
وأوضحت
"And explained" or "and clarified."
The word "وأوضحت" is used here as the verb "clarified" to indicate that the student made her opinion clear.
وأوضحت الطالبةُ رأيها بوضوحٍ أثناء النِّقاش.
The student clarified her opinion clearly during the discussion.
Here, "وأوضحت" means "revealed" and is used to describe the process of uncovering information.
وأوضحت التحرياتُ حقيقةَ ما جرى تلك الليلة.
The investigations revealed the truth of what happened that night.
In this sentence, "وأوضحت" stands for "explained" where it describes the act of describing objectives.