ebb[verb]Synonyms:- flow back, go out, recede, retire, retreat, subside, wane, withdraw
- decline, decrease, diminish, dwindle, fade away, fall away, flag, lessen, peter out
[noun]Synonyms:- flowing back, going out, low tide, low water, retreat, subsidence, wane, withdrawal 
Antonyms: flow
Contrasted words: ascend, increase, mount, rise, advance, progress
Related Words: decline, 
peter (out), 
recede, 
retreat, 
retrograde [TahlilGaran] English Synonym Dictionary ▲
 I.  ebb1 /eb/ 
 noun[
Language: Old English; 
Origin: ebba]
1.  [singular] (
also ebb tide) the flow of the sea away from the shore, when the 
tide goes out
 Antonym : flood tide2.  be at a low ebb to be in a bad state or condition: 
 His confidence is at a low ebb.3.  ebb and flow
 His confidence is at a low ebb.3.  ebb and flow a situation or state in which something increases and decreases in a kind of pattern: 
 the ebb and flow of the conversation
 the ebb and flow of the conversation the ebb and flow of passengers in the station
 the ebb and flow of passengers in the station [TahlilGaran] Dictionary of Contemporary English ▲
 II.  ebb2  verb [intransitive]1.  if the 
tide ebbs, it flows away from the shore
2.  (
also ebb away) to gradually decrease: 
 Linda’s enthusiasm began to ebb away.
 Linda’s enthusiasm began to ebb away.  [TahlilGaran] Dictionary of Contemporary English ▲