Menyo (G3377) means to make known, disclose, or reveal — especially to inform authorities of something. It appears when Paul's nephew reveals the Jewish plot against Paul (Acts 23:30), and Jesus uses it when speaking of the Spirit revealing things.
The disclosure (menyo) of the plot against Paul by his nephew (Acts 23) is one of those quiet providential moments that turned the course of redemptive history. A young man, unnamed, hears a conspiracy — forty men bound by oath not to eat until they had killed Paul — and risks everything to report it. This small act preserved the apostle who would write half the New Testament. The word also appears in John 11:57 for reporting Jesus' whereabouts. God uses the willing mouth of one person to redirect the course of the gospel. Disclosure, even of small intelligence, can be the hinge of history.