This is the 526th most frequent Arabic word.
قمة
"قمة" means "peak" or "summit" in English.
In this sentence, 'القمة' (al-Qimmah) refers to a 'summit' as a conference or meeting of leaders.
وصل القادة إلى القمة للبدء بالمحادثات.
The leaders arrived at the summit to start the talks.
Here, 'القمة' means 'the peak' or 'the highest point of a mountain'.
قفز المتسلق إلى القمة بعد ساعات من الجهد.
The climber jumped to the peak after hours of effort.
In this usage, 'قمة' is used metaphorically to mean 'the utmost or best quality'.