Noun, Noun which may take the genitive case particle 'no'
number one; first; first place
このネクタイにしましょう、一番よさそうだから。I will take this tie, as it seems to be the best. Adverb (fukushi)
best; most
Noun
game; round; bout
Adverb (fukushi)
as a test; as an experiment; by way of experiment; by way of trial; tentatively
see 試しに
Noun
song (e.g. in noh); piece
Also written 1番【いちばん】