πεντηκοστή

Acts 2:1 πεντηκοστῆς of Pentecost

When the day of Pentecost came, they were all together in one place.

Acts 20:16 πεντηκοστῆς of Pentecost

Paul had decided to sail past Ephesus to avoid spending time in the province of Asia, because he was in a hurry to reach Jerusalem, if possible, by the day of Pentecost.

1 Corinthians 16:8 πεντηκοστῆς· Pentecost;

But I will stay in Ephesus until Pentecost,