Definition of "However" :

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

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

adverb: in whatever way or manner

"Victory, however it was brought about, was sweet."

adverb: to whatever degree or extent

"The results, however general, are important."

adverb: by contrast; on the other hand

"The first part was easy; the second, however, took hours."