noun

arsonist

arsonist

The police are looking for the arsonist.

The police are looking for the arsonist.

((countable)) a person who commits arson The police are looking for the arsonist.

Synonyms: incendiary, pyromaniac, firebug

From 'arson' + the suffix '-ist', which denotes a person who performs an action.

The '-ist' suffix means 'a person who does something', like in 'artist' or 'dentist'. So, an 'arsonist' is a person who commits 'arson'.

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