Interjection
Usually written in kana
1. by no means; never!; well, I never!; you don't say!; no way!
まさか、そんなはずはない。No way, that can't be.
Adverb
Usually written in kana
2. certainly (not); surely (not); hardly (expected)
with neg. verb
まさか信じるわけじゃないだろうな。You surely don't believe that, do you?
Adjective (の)
Noun
Usually written in kana
3. something unexpected; emergency
Adverb
Adjective (の)
Usually written in kana
4. indeed; really; truly; unexpectedly
Archaic
Noun
Usually written in kana
5. (the) present; (the) here and now; situation at hand