This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The act or practice of burning property; arson.

n. Inflammatory or provocative action; instigation.

n. The act or practice of maliciously setting fires; arson.

n. The act or practice of an incendiary; malicious burning.

n. malicious burning to destroy property

"All persons who, during the past year, had fallen into gross sins, such as incendiarism, theft, adultery, witchcraft, and so forth, were expected to contribute 28 ngugas, or a little over £2."

burning    combustion   

arson   

pyromania    arson    pillage    brigandage    assassinations