Today we’ll focus on the advanced C1/C2 masculine noun apogée, meaning apogee, height, peak, zenith, culmination and hayday. Apogée comes from apogeus in Latin, which in turn comes from ἀπόγειος (apogeios) in Greek, meaning “far from the earth”.
apogée
apogee, height, peak, zenith, culmination

Example sentences
This first example sentence uses the preposition depuis, translating literally to “since”. When used with a verb in the present tense it means “for + amount of time”.
Claude travaille dans la même entreprise depuis vingt ans et est à l’apogée de sa carrière.
Claude has been working in the same company for twenty years and is at the peak of his career.
This sentence uses the feminine noun puissance, which means “power” as in the power of a government or engine. Puissance is realted to the verb pouvoir (can, to be able).
Cette peinture symbolise la puissance de l’empire à son apogée.
This painting symbolizes the power of the empire at its peak.