Also means
igniter, flirt (informal)
Usage Note
Allumeur is derived from allumer (to light/switch on). In technical contexts it refers to an ignition device (e.g. in a car engine or gas appliance). Informally and with a feminine form allumeuse, it describes a person (especially a woman) who flirts provocatively without intention — a usage considered mildly offensive and best avoided in formal speech.
Examples
"L'allumeur de la chaudière est tombé en panne."
Natural Translation
The igniter on the boiler broke down.

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