Русско-англо-русский юридический словарь

The terms internecine war and domestic war are often used interchangeably with "civil war", but "internecine war" can be used in a wider meaning, referring to any conflict within a single state, regardless of the participation of civil forces. Thus, any war of succession is by definition an internecine war, but not necessarily a civil war. (Wikipedia)

"Torture (from the Latin tortus, ""twisted"") is the act of deliberately inflicting physical or psychological pain in order to fulfill some desire of the torturer or compel some action from the victim. Torture, by definition, is a knowing and intentional act ( deeds which unknowingly or negligently inflict pain without a specific intent to do so are not typically considered torture.")

Circus performers are, by definition, risk takers. (Cambridge Academic Content Dictionary)