To give a signal by nodding or gesturing — used for Peter and John beckoning their fishing partners to come help with the miraculous catch.
The Greek kataneuō (from kata, down/toward + neuō, to nod) means to signal by nodding the head or gesturing — a silent communication across a distance. It appears once in the NT: Luke 5:7, where after the miraculous catch of fish, Simon Peter and his partners 'beckoned (kateneuson) to their partners in the other boat to come and help them.' The boats were filling with fish and beginning to sink — a pantomimed cry for help across the water.
The single use of kataneuō in Luke 5 is a vivid detail of eyewitness narrative. The miraculous catch was so overwhelming that the fishermen could not even shout — they gestured. James and John in the other boat saw the signal and came. This silent beckon across the water, in the immediate aftermath of the miraculous catch, captures the moment of transition: Simon Peter fell at Jesus' knees saying 'Go away from me, Lord; I am a sinful man.' Jesus answered: 'Don't be afraid; from now on you will fish for people.' The kataneuō — the signal that summoned partners for earthly fish — becomes the call to summon partners for the kingdom.