This root form (lemma) is used in 2 different forms in the NT: κυβερνήτης (NMS), κυβερνήτῃ (DMS).
It is glossed in 1 way: ‘captain’.
OET ACTS 27:11 Greek word=κυβερνήτῃ (kubernaʸtaʸ) Morphology=DMS English gloss=‘captain’ SR GNT ACTS 27:11 word 6
OET REV 18:17 Greek word=κυβερνήτης (kubernaʸtaʸs) Morphology=NMS English gloss=‘captain’ SR GNT REV 18:17 word 10