Explanation:

The best synonym for the word "faint" is "tired".

Meaning of "faint":
The word "faint" is an adjective that means lacking strength or energy, feeling weak or exhausted. It can also refer to a temporary loss of consciousness.

Meaning of "tired":
The word "tired" is an adjective that means feeling or showing the need for rest or sleep, exhausted or fatigued.

Synonyms of "faint":
1. Weak
2. Lethargic
3. Exhausted
4. Weary
5. Tired

Explanation:
When we compare the meanings of "faint" and "tired", they share a similar concept of lacking energy or feeling weak. Both words describe a state of exhaustion or fatigue. Therefore, "tired" is the best synonym for "faint" among the given options.

Options:
a) Famous - This option is not a synonym for "faint". "Famous" means well-known or recognized by many people. It does not convey the same meaning as "faint".
b) Projection - This option is not a synonym for "faint". "Projection" refers to the act of projecting or estimating something in the future. It has a completely different meaning compared to "faint".
c) Injurious - This option is not a synonym for "faint". "Injurious" means causing harm or injury. It does not convey the same meaning as "faint".
d) Tired - This option is the best synonym for "faint". "Tired" conveys a similar meaning of lacking energy or feeling weak. It is the correct choice among the given options.

D is correct