Definition of self-immolate in US English:

self-immolate

verb

[no object]
  • 1Set fire to oneself, especially as a form of protest or sacrifice.

    ‘six people have self-immolated to protest against economic hardship’
    1. 1.1 Destroy or cause serious harm to oneself.
      ‘the speculative US economy of the 1920s self-immolated in a week’