Explain the usage of through, threw, and thorough.

Through, threw, and thorough are three words that are often confused due to their similar spellings and pronunciations. However, they have different meanings and usage in the English language.

1. Through: Through is a preposition, adverb, and adjective that has multiple meanings and uses.

- As a preposition, through indicates movement from one side or end to the other, often implying passage or completion. For example:
- "We walked through the park to reach the other side."
- "She read through the entire book in one sitting."

- As an adverb, through can mean completely or finished. For example:
- "I am through with my work for the day."
- "The storm has passed through, and the skies are clear now."

- As an adjective, through can describe something that is finished or completed. For example:
- "The project is through, and we can move on to the next one."
- "She is through with her exams and can now enjoy her summer break."

2. Threw: Threw is the past tense of the verb "throw." It is used to describe an action of propelling or launching something through the air. For example:
- "He threw the ball to his friend."
- "She threw her bag on the floor in frustration."

3. Thorough: Thorough is an adjective that means complete, detailed, or exhaustive. It is used to describe something that is done with great care and attention to detail. For example:
- "He conducted a thorough investigation to uncover the truth."
- "She gave a thorough explanation of the topic, leaving no room for confusion."

In summary, through is a versatile word used as a preposition, adverb, and adjective to indicate movement, completion, or passage. Threw is the past tense of the verb "throw" and describes an action of propelling something through the air. Thorough is an adjective that means complete or detailed, emphasizing careful attention to detail.