Question

Explain how laertes statement is enriched by his drawing on two separate meanings of the word subject

Answer 1

In Act I, Scene 3, Laertes' words to Ophelia draw upon two meanings of the word subject.

The first is a noun, meaning "a citizen of a state." The second is an adjective, meaning "dependent upon."

When Laertes describes Hamlet as being "subject to his birth," he is saying that Hamlet is literally a subject of the king and also dependent upon family obligations. He is not simply free to love Ophelia.

Answer 2

Hamlet is basically the account of Hamlet and his mission for exact retribution against Claudius; nonetheless, amidst his contentions, unmistakably Hamlet has a relationship or the like with Ophelia. This relationship, in the long run, costs Ophelia her life, and it is a relationship that her sibling cautions her about, however maybe not for the right reasons. 
Before he comes back to class, Laertes and Ophelia have a couple of minutes together. Obviously, they cherish each other and have a transparent relationship, despite the fact that Ophelia later reproves her sibling, teasingly, about lecturing her yet not following his own recommendation about things. In this discourse, Laertes cautions Ophelia around a few particular stresses he has concerning her association with Hamlet, something she promptly confesses to having.