Overboard dream meaning is explained below using 3 different sources. Each interpretation is shown with its source.
Interpretation 1 — Internet Archive - Anonymous
To dream that you have fallen into the water from some boat or vessel is a sign of misfortune. Do not speculate, or you will lose your money. But to the sailor or anyone professionally connected with the water, this becomes a dream of contrary, and foretells prosperity.
Source: Mystic Dream Book • Author: Internet Archive - Anonymous
Interpretation 2 — Katherine Taylor Craig
To fall overboard denotes poverty, imprisonment and sickness (Raphael). Obviously an anxiety dream.
Source: The Fabric of Dream • Author: Katherine Taylor Craig
Interpretation 3 — Margaret Hamilton
If falling overboard, see “falling”; throwing one overboard is unfair rejection: see “rejection”
Source: Dream Dictionary Unlimited • Author: Margaret Hamilton