Adverb

Im Zweifel

in case of doubt, when in doubt, if in doubt

Im Zweifel fragen Sie bitte den Arzt.

In case of doubt, please ask the doctor.

Im Zweifel entscheide ich mich für die Sicherheit.

When in doubt, I choose safety.

((Im Zweifel)), + main clause When in doubt, ... When in doubt, it's better to say nothing.

bei Unsicherheit (in case of uncertainty)

'im' is a contraction of 'in dem'. 'Zweifel' means 'doubt'. So, it literally means 'in the doubt'.

'Zweifel' is related to 'zwei' (two), reflecting the state of being torn between two options, which causes doubt.

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