hollo /holˈō/

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

To shout

• jackerooing
• jackeroos
• jacket
• jacketed
• jacketing
• jacket potato
• jacket potatoes
• jackets
• jackfish
• jackfishes
• Jack-fool
• Jack Frost
• jack-fruit
• jack-fruits
• Jack-go-to-bed-at-noon
• jackhammer
• jackhammers
• jack-high
• jacking
• Jack-in-office
• Jack-in-the-box
• Jack-in-the-green
• Jack-in-the-pulpit
• Jack Ketch
• jackknife