Compounds of つんと

• つんと
  (adv) (1) prickly (attitude)
  aloof
  (vs) (2) to look standoffish
  (3) acrid
  sharp (smell)
  (4) popping (e.g. of ears, sinuses, etc.)
• こつんと
  (adv) with a bump
  with a clunk
• がつんと言う
  (exp) to tell a person (something) emphatically
  to let a person have it