n.
1. 【天】天顶[the S]
zenith telescope
天顶仪
It felt as if we had traveled from nadir to zenith.
感觉上我们好像已从天底走到了天顶。
2. 最高点;顶点;极盛时期[S1]
Michael felt that he had already passed the zenith of his power.
迈克觉得自己的权力已过了顶盛期。
Being elected class president was the zenith of my years in high school.
当选班长是我中学时代最辉煌的时刻。