Once

"Once" in Dutch

een keer

(one and only one time)

eenmaal

(one and only one time)

eens

(one and only one time)

eens

(formerly)

ooit

(formerly)

eens dat

(as soon as)

zodra

(as soon as)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.