ebb

EBB noun

uk/eb/ us  the ebb (tide)
the movement of the sea when it flows away from the land

отлив
Идиомыbe at a low ebb ebb and flow
ebb verb [ I ] uk/eb/ us ebb verb [I]
(SEA)

When the tide ebb s, the sea flows away from the land.

отступать (об отливе), убывать