1.  with a scraping sound;  with a grating sound;  with a scratching sound
Adverb
Verb (する)
Onomatopoeic
2.  with force;  hard;  vigorously
3.  forcibly (carry out);  forcefully;  in a pushy manner
Adverb
Adjective (な)
Adjective (の)
Verb (する)
Onomatopoeic
4.  hard (e.g. food);  stiff (e.g. clothing)
Adjective (な)
Adjective (の)
Onomatopoeic
5.  inflexible;  uncompromising;  dyed-in-the-wool
Adjective (の)
Colloquialism
Onomatopoeic
6.  hardcore;  serious;  genuine;  bona fide;  true;  real