hollo /holˈō/

1. A shout of encouragement or to call attention
2. A loud shout

To shout

• pipe-cleaner
• piped
• piped music
• pipe down
• pipe dream
• pipe-dreamer
• pipe-dreamers
• pipe dreams
• pipefish
• pipefishes
• pipe fitting
• pipe fittings
• pipeful
• pipefuls
• pipe-key
• pipe-keys
• pipe-layer
• pipe-layers
• pipe-laying
• pipeless
• pipeless organ
• pipeless organs
• pipe-light
• pipe-lighter
• pipe-lights