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ebb

1 ebb /ˈɛb/ noun
plural ebbs
1 ebb
/ˈɛb/
noun
plural ebbs
Britannica Dictionary definition of EBB
[count]
: the time when the tide flows out from the land
: a low point or condition : a condition of weakness, failure, etc. often used after at

ebb and flow

used to describe something that changes in a regular and repeated way
2 ebb /ˈɛb/ verb
ebbs; ebbed; ebbing
2 ebb
/ˈɛb/
verb
ebbs; ebbed; ebbing
Britannica Dictionary definition of EBB
[no object]
of a tide : to flow outward from the land
: to get worse