الْعَصْرِ

A word in the Arabic language will either be 1) a verb or 2) a noun or 3) a particle – الْعَصْرِ is a noun

A noun may either be 1) Definite or indefinite 2) Masculine or feminine 3) Singular, dual or plural 4) Nominative, accusative or genitive

الْعَصْرُ is the natural state of this definite noun and it became الْعَصْرِ due to: 1) a preposition that precedes it or 2) a possessed noun that precedes it or 3) it’s a noun of dependent declension a) نَعْتٌ / صِفَطٌ adjectives b) التَّوْكِيْدُ emphatic c) المَعْطُوْفٌ conjunction d) البَدَلُ synonym

Age, time, afternoon, history, succession of ages, evening, century, epoch, time that is measurable

To press, squeeze, wring, withdraw a thing from