Definitions of overcome:

• verb:   get on top of; deal with successfully
• verb:   win a victory over

  Example: "You must overcome all difficulties"

• verb:   overcome, usually through no fault or weakness of the person that is overcome
• verb:   overcome, as with emotions or perceptual stimuli
• adjective:   rendered powerless especially by an excessive amount or profusion of something

  Example: "Too much overcome to notice"