OWL meaning in Messaging ?

Answer: What is Ordinary Wizarding Level mean?

Hogwarts School of Witchcraft and Wizardry () is a fictional British boarding school of magic for students aged eleven to eighteen, and is the primary setting for the first six books in J. K. Rowling's Harry Potter series and serves as a major setting in the Wizarding World universe.

reference

Full Form	Category
Online Writing Laboratory	Academic & Science
Older Wiser Literature	Academic & Science
OverWhelmingly Large telescope	Academic & Science
Online Writing Lab	Academic & Science
Ornithological Worldwide Literature	Academic & Science
Online With Libraries	Academic & Science
Online Web Learnings	Business
Outdoor Webelos Leader	Community
Our Whole Lives	Community
Owls Working For Leadership	Community
Our World Languages	Community
Online Writing and Learning	Community
Overly Wide Lightbucket	Community
On With Life	Community
Older Wiser Learners	Community
Omnipotent Wonderful Lord	Community
Older Wiser Lutherans	Community
Older Womens' League	Community
One World Line	Community
Our World Learning	Community
Online Webbased Learning	Community
Orchestrating Wisdom And Learning	Community
Online Web Learning	Community
Object Warehouse For Learning	Community
Order of Wild Ladies	Community
Obsessed With Learning	Community
Ogle Winston Link	Community
Opening the World to Learning	Community
On-line Web stories for Learning	Community
Object Windows Library	Computing
Web Ontology Language	Computing
Origin Wiracipta Lestari	Computing
Overwatch League	Computing
Open Windows Library	Computing
Oxford Wireless Lan	Computing
Operator Wireless and Line	Computing
Outpost Firewall	Computing
OWL Token (StealthSwap)	Cryptocurrency
OWL	Cryptocurrency
One Way Low	Electronics
Often Will Leak	General
Outstanding Wizard Luck	General
Ordinary Wizarding Levels	General
Ongoing Weight Loss	General
Observe Wait And Listen	General
Outstanding Wizarding Levels	General
Our Wedding List	General
Oh Wonderful Life	General
Online Wisdom Link™	General
Orientation Week Leiden	General
Old World Labs	General
Old World Levain	General
Owens With Lemke	General
Observe Water Levels	General
One Whole Life	General
Old White Lady	General
Observation Without Limits	General
Optimal Wellness for Life	General
Optimized and Witty Livery's	General
Oil Warning Light	General
Outlined White Lettering	General
Oil and Water Light	General
Overweight Load	General
Overheat Warning Lamp	General
Off White Letter	General
Orman Winkler Legacy	General
Overstreet Whiteness Level	General
Observe Wait Listen	Governmental
Our Web Location	Internet
Orientation Workshop Leader	Jobs
Open Ware Laboratory	Medical
Orphaned WildLife rehabilitation society	Medical
Ordinary Wizarding Level	Messaging
One Watt Linear	Military and Defence
Outlaw Wrestling League	Sports