How do you say “thud”?

Question

How do you say thud in Esperanto, as in something heavy hitting the ground? Are there multiple ways to say it?

Answer 1

According to Vikipedio, the sound of falling objects is Puf! or Pum!, while Bum! is used for a "sudden, unexpected fall". See the PIV's definitions of Puf, Pum, and Bum.