Definition: The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigative" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It is often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject. The word "investigation" means a thorough investigation or search for causes, effects, or truths in an object, event, person, etc. It's often used to describe a systematic approach by which someone investigates or searches for information about something. Investigating can also mean the act of doing research on or gathering information regarding an issue or subject.