What do dreams about water and drowning mean?

"So drowning in dreams can be a sign that at the time of the dream we may be feeling overwhelmed at work or at home. Drowning can also represent the feeling that we can't catch our breath; this may also be a metaphor for not getting a moment to ourselves."

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And another question, what does it mean when you dream about a huge wave?

The huge waves can represent the surging of your emotions in a situation where you feel overwhelmed or unprepared to cope with what is occurring in life, where you may be procrastinating, or not facing up to your true feelings about something. Moreover, is drowning a death? Drowning is a form of death by suffocation. Death occurs after the lungs take in water. This water intake then interferes with breathing. The lungs become heavy, and oxygen stops being delivered to the heart.

In respect to this, what does dying in a dream mean?

Dreams about you dyin. Dreaming about yourself dying could mean that you're in a major life transition. It might be a symbolic goodbye to a relationship, a job, or a home. It could represent a part of you that is dying or something you'd like to escape.