«يَشْعُرُ زَيْدٌ وَيَكْتُبُ وَيُعْطِي وَيَمْنَعُ»
Zayd composes poetry, writes, gives, and withholds.
All four predicates concern the same subject, Zayd. Poetry and writing are related literary activities, while giving and withholding form a salient contrast. The unifying subject and these relationships make coordination intelligible.
Wāw does not turn the predicates into synonyms. It brings several distinct assertions under one subject. That is different from complete connection in which a subsequent clause merely repeats, explains, or confirms the first assertion.