Define "Burn"

This is an unpleasant story:

An Australian woman has appeared in court in Adelaide charged with murdering her husband by setting fire to his penis.

Rajini Narayan, 44, is alleged to have doused her husband, Satish, with a flammable liquid while he was sleeping.

When she set him alight, Mr Narayan jumped out of bed and knocked over the substance, causing the fire to spread.

Mrs Narayan told the court she had not intended to kill her husband but to punish him for his alleged infidelity.

Mrs. Narayn, it was probably already burning, just not in a way that was manifestly apparent to you.