English → French
ebb /BrE ɛb 
, AmE ɛb /
A
noun
reflux m
the tide is on the ebb la marée descend
the ebb and flow le flux et le reflux (also )
B
intransitive verb
1 [tide] descendre, refluer
to ebb and flow monter et descendre
2 [support] décliner
Idiom
to be at a low ebb
être au plus bas
Phrasal verb
■ ebb away
[strength, enthusiasm, support] décliner