1. (object of a verb or preposition) the word you use to refer to yourself when you are the person receiving an action. 2. (the self) your own character, personality, or true self.

Is it correct to say "He gave the book to I."?

No — say "He gave the book to me.". Use 'me' after prepositions like 'to', 'for', or 'with', not 'I'.

me

pron. · n.

1 object of a verb or preposition (pron.)
A1 Beginner

the word you use to refer to yourself when you are the person receiving an action.

the first-person singular pronoun used as the direct or indirect object of a verb or as the object of a preposition.

Example

Can you help me carry these heavy bags to the car?

Example

The manager asked me to prepare a comprehensive report regarding the quarterly budget discrepancies before the board meeting on Tuesday.
- you
- him
- her
Pitfall

He gave the book to I.

He gave the book to me.

Use 'me' after prepositions like 'to', 'for', or 'with', not 'I'.
2 the self (n.)
B2 Upper Intermediate

your own character, personality, or true self.

the self or the ego; the essential personality of the speaker as a distinct entity.

Example

I just need some 'me time' to relax and read a book.

Example

The therapist encouraged him to rediscover the 'me' that existed before the pressures of his high-stakes career began to dominate his identity.