
entfachen
to kindle
To make a fire start burning; to light something.
Mit trockenem Reisig und einem Feuerstein entfachte er ein wärmendes Lagerfeuer.
With dry brushwood and a flint, he kindled a warming campfire.
to kindle / ignite
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to kindle
To make a fire start burning; to light something.
Mit trockenem Reisig und einem Feuerstein entfachte er ein wärmendes Lagerfeuer.
With dry brushwood and a flint, he kindled a warming campfire.

to ignite
(figurative) To trigger or intensify a strong feeling, an argument, or a conflict.
Die provokante Aussage des Politikers entfachte eine hitzige Debatte im ganzen Land.
The politician's provocative statement ignited a heated debate throughout the country.
'Entfachen' (to kindle / ignite) is an inseparable verb. The prefix 'ent-' remains firmly attached to the verb in all sentence forms. It often indicates the beginning of a process.
Er hat im Garten ein Feuer entfacht.
He kindled a fire in the garden.
The verb 'entfachen' (to kindle / ignite) belongs to a more formal, elevated style. It is often found in written language, for example in news reports, reports, or literature.
Die Rede des Präsidenten entfachte landesweite Proteste.
The president's speech ignited nationwide protests.
In its figurative meaning, 'entfachen' (to ignite) is used very frequently. Typical objects are abstract nouns such as 'eine Debatte' (a debate), 'ein Streit' (an argument), 'eine Diskussion' (a discussion), 'Leidenschaft' (passion), or 'Begeisterung' (enthusiasm).
Der neue Film hat eine große Begeisterung für das Thema entfacht.
The new film has ignited great enthusiasm for the topic.
to trigger / release
Both words can describe the beginning of an argument or a strong emotion. “Auslösen” neutrally identifies the occasion and cause, while “entfachen” places greater emphasis on the intense, spreading effect. Use “auslösen” for a matter-of-fact cause, and “entfachen” for a particularly heated conflict or emotional outburst.

Die neue Regel entfachte im Verein einen heftigen Streit.
The new rule ignited a heated argument in the club.
Die neue Regel löste im Verein einen Streit aus.
The new rule triggered an argument in the club.