[uh-loh-uh, ah-loh-hah]
noun, interjection
hello; greetings.
friendly; hospitable; welcoming: The aloha spirit prevails throughout the islands.

1890–95; < Hawaiian Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
aloha (əˈləʊə, ɑːˈləʊhɑː)
n, —sentence substitute
hello a Hawaiian word for goodbye

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1798, Hawaiian aloha, Maori aroha, an expression used in greeting or valediction, lit. "love, affection, pity." Sometimes aloha 'oe, from 'oe "to you."
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

Aloha definition

(From the Hawaiian greeting) A system of contention resolution devised at The University of Hawaii. Packets are broadcast when ready, the sender listens to see if they collide and if so re-transmits after a random time. Slotted Aloha constrains packets to start at the beginning of a time slot. Basic Aloha is appropriate to long propagation time nets (e.g. satellite). For shorter propagation times, carrier sense protocols are possible.
The Free On-line Dictionary of Computing, © Denis Howe 2010
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Example sentences
Aloha and welcome to the online vehicle registration renewal system.
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