Definitions of however:

• adverb:   despite anything to the contrary (usually following a concession)

  Example: "Although I'm a little afraid, however I'd like to try it"

• adverb:   in whatever way or manner

  Example: "Victory, however it was brought about, was sweet"

• adverb:   to whatever degree or extent

  Example: "The results, however general, are important"

• adverb:   by contrast; on the other hand

  Example: "The second, however, took hours"

• adverb:   in what way or manner or by what means (`however' is sometimes used as an intensive form of `how')

  Example: "However did you get here so soon?"