how to implement a dicitonary using BST

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C

i am using following aproach to make a BST


i am writing a menu driven program to insert, delete and search a word in the
dictionary.

typedef struct node
{
    String word;
    String Meaning;
    struct node *left;
    struct node *right;
    struct node *parent;
};

The tree itself is represented by a pointer to the root node of the
tree. The word/meaning field stores the word corresponding its meaning of
this dictionary; the left and right pointers point to the left and right children
of this node respectively while parent points to the parent of this node (they
will take value NULL if these nodes do not exist)

so how i should store the word from a txt file to this tree.