Because, since, consequently, solution, solve, issue, problem

Because: This word is used to introduce the cause or reason for something.

Example: She failed the exam because she didn't study.

Since: This word is used to introduce a reason or explanation for something.
Example: Since it is starting to rain, we should bring umbrellas.

Consequently: This word is used to show the result or consequence of something.
Example: He forgot his homework and consequently received a low grade.

Solution: This word refers to a way of solving or resolving a problem or issue.
Example: The solution to the math problem is to divide the numbers.

Solve: This word means to find a solution or answer to a problem or issue.
Example: The detective solved the mystery by gathering evidence.

Issue: This word refers to a problem or concern that needs to be addressed or resolved.
Example: The main issue with the new policy is its impact on the environment.

Problem: This word refers to a situation or matter that presents difficulty or challenge.
Example: The problem with the car is a flat tire.