Adverb
Usually written in kana
1.  a little;  a bit;  slightly
2.  just a minute;  for a moment;  briefly
3.  somewhat;  rather;  fairly;  pretty;  quite
4.  (not) easily;  (not) readily
before a verb in negative form
Interjection
Usually written in kana
5.  hey!;  come on;  excuse me
Expression
Usually written in kana
6.  thanks, but no;  not feasible;  not possible