This root form (lemma) is used in 2 different forms in the NT: κέντρα (ANP), κέντρον (NNS).
It is glossed in 4 different ways: ‘the prods’, ‘the sting’, ‘sting’, ‘stings’.
OET ACTS 26:14 Greek word=κέντρα (kentra) Morphology=ANP English gloss=‘the prods’ SR GNT ACTS 26:14 word 28
OET 1COR 15:55 Greek word=κέντρον (kentron) Morphology=NNS English gloss=‘sting’ SR GNT 1COR 15:55 word 10
OET 1COR 15:56 Greek word=κέντρον (kentron) Morphology=NNS English gloss=‘the sting’ SR GNT 1COR 15:56 word 3
OET REV 9:10 Greek word=κέντρα (kentra) Morphology=ANP English gloss=‘stings’ SR GNT REV 9:10 word 8