- The definition of ahoy is nautical or pirate lingo and is a term used to attract attention or say hello when boarding or aboard a boat.
When you are going to board a ship and want to say hello to someone on the ship using traditional nautical lingo, this is an example of a time when you might say ahoy.
A pirate might say "ahoy!"
ahoy definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Naut. used to hail a ship: ship ahoy!
Origin: a(h) plush hoy
ahoy definition by American Heritage Dictionary
Used to hail a ship or a person or to attract attention.