What is the the difference between the verbs dwindle, dissipate and ebb in terms meaning?
to dwindle means:
Diminish gradually in size, amount, or strength
Though she was many miles away, he felt her aura gradually dim and dwindle until it faded completely away…
http://www.oxforddictionaries.com/definition/english/dwindle
to dissipate means:
to gradually disappear by becoming less strong, or to make something do this
(With reference to a feeling or emotion) disappear or cause to disappear
The concern she’d felt for him had wholly dissipated
He wanted to dissipate his anger
http://www.oxforddictionaries.com/definition/english/dissipate
http://www.macmillandictionary.com/dictionary/british/dissipate
to ebb means:
(Of an emotion or quality) gradually decrease
He sighed, a bit of the anger ebbing away from his countenance