Each index entry belongs to a unique Main Category:

• Location: Category of all index entries that have a fixed, permanent or long-term defined, position on a (usually cadastral) map.
  Examples: The High terrace, Paladins ladder, Vorn's Cliff, the Grand Duchy of Agramor.

• Living: Category of all index entries capable of moving on a map by themselves, or of their own volition.
  Examples: Didier Guiserix, Fanrod Mornedoc, a Doodlyn, Teaphanerys XIV the Long-lived (when alive).

• Thing: Category of all index entries that can be moved on a map, though not by themselves.
  Examples: A Laelophone, a tankard of Schtoob, a finger-snap, the Killhem tree.

• Concept: Category of all index entries that are neither a Location, nor a Living, nor a Thing.
  Examples: Snooper, God-King, Celestia, Segur & Knight's disease, to go mist-hunting.

When needed, main categories are further divided into mutually exclusive sub-categories, as follows:

All index entries in the Location category are either:

• an Area: Sub-category of Locations that cover a substantial area of the map and contain either multiple Lots and Arteries, or a major Geographical feature. An area is always defined by one or more closed polygons.
  Examples: Laelith the mystical city, the Bath-Oh! neighborhood, the Languishings marshes, Barony of Kaoca.

• an Artery: Sub-category of Locations that form the public thoroughfare through which the general public can usually travel along or move through. Arteries can either be open (roads, pathways, waterways, bridges & gates) or closed (gardens, plazas) polygons.
  Examples: Buttery ladder, bone bridge, dispatchers garden, Zyglute square.

• a Lot: Sub-category of Locations that are man-made and contain no other Lot than those of type Subdivision.
  Examples: House of the Thousand Flowers, the Divine lock, ruins of Cuss Castle, the Forbidden library.

• a Meta: Sub-category of Locations that are either Itineraries or Networks sets of Arteries
  Examples: piety-passageway, the adventurer's path, the sewers .

All index entries in the Living category are either:

• Animated: Sub-category of Living that are animated by a Will rather than born. This includes both ethereal spirits and undeads.
  Example: Zombie

• Humanoid: Sub-category of born Living that can be Player Characters.
  Example: Gnome, Human, Half-elf.

• Monster: Sub-category of born Living that cannot be Player Characters. Includes animals.
  Example: Doodlyn.

All index entries in the Thing category are either:

• Transport: Sub-category of Things that can be used as means of transportation.
  Example: the Queen of Cups & Swords ship, .

• Plant: Sub-category of Things that grow such as trees and vegetables.
  Examples: Fevers tree in the Punishment, the tree in Killhem Impasse.

All index entries in the Concept category are either:

• Attribute: Sub-category of Concepts that are a skill, trait or title linked to a Living.
  Example: Snooper, Dwarf, High Priest.

• Condition: Sub-category of Concepts that can temporarily or permanently affect a Living, a Thing or a Location.
  Example: Segur & Knight's disease.

• Event: Sub-category of Concepts that are linked to a specific time.
  Examples: The Ball of Flutters, Celestia.

• Organization: Sub-category of Concepts used to describe a specific group or subset of Livings.
  Examples: The Inner Council, the High Guild.

Locations are also classified according to their type (and, often, sub-type) and usually identified by a corresponding marker type on the Map. Unlike Categories, types are often, but not always, mutually exclusive and a Location could be of two distinct types or sub-types at once.

• City, from most insignificant to largest:
  • Burgh: Urs, in the Grand Duchy of Agramor
  • Village: Howe, on the outskirts of Laelith
  • City: Tanith-Lenath
  • Capital: Hilminia, capital of the Gardens of Jadhys

• District, from most specific to broadest:
  • Block: The Island
  • Harbor: Altalith marina
  • Neighborhood: Bath-Oh
  • Stratus: Stratus of brumes
  • Terrace: The Hand that crafts
  • Other: Mages Peaks

• Geographic feature, in alphabetical order:
  • Cliff: Vorn's Cliff
  • Desert: Scoria wasteland
  • Island: Sarlom Sodor penitentiary island
  • Marsh: The Languishings
  • Mountain: Bald mountains
  • Plateau: Siderian plateau
  • Ravine: Ravine of gems
  • Valley: Dragons coomb
  • Water Area: Highwater lake, Phalanx pond, Inlam torrent

• Province: Egonzasthan Shires Federation

• Garden: Destitution gardens

• Pathway:
  • Catacombs: Bogomolet catacombs
  • Traboule: Little traboule
  • Tunnel: The rising cart

• Plaza
  • Cavern: Evil bazaar
  • Market: Old flowers market
  • Quay: Old-time quay
  • Ramp: Soldiers ramp

• Road
  • Impasse: Killhem impasse
  • Ladder: Puppeteer's ladder
  • Stairs: Stairway of the ineffable faith
  • Street: Fountain of Youth street
  • Trail: The Unhinged

• Waterway: Quijiento river

• Building
  • Administration
  • Alchemist
  • Apothecary
  • Armory
  • Bank
  • Barracks
  • Bookbinder
  • Books
  • Brizure
  • Candies
  • Cemetery
  • Chapel
  • Cloaque
  • Clothes
  • Cloths
  • Construction
  • Convent
  • Council
  • Court
  • Distillery
  • Dwarves
  • Dyer
  • Education
  • Embassy
  • Entertainment
  • Fletcher
  • Food & Drinks: The White Eagle
  • Gambling
  • Guardhouse
  • Guild
  • Habitation
  • Herbalism
  • Illicit
  • Jeweler
  • Jewelry
  • Judicial
  • Laboratory
  • Lazaret
  • Lodging: Hostelry of the Lazaret
  • Mansion
  • Market
  • Maskmaker
  • Mercenary
  • Military
  • Mill
  • Monastery
  • Newspaper
  • Official
  • Organist manufacture
  • Palace
  • Pawnshop
  • Private
  • Private museum
  • Religious
  • Secret
  • Service
  • Shop
  • Sport
  • Stables
  • Stand-up
  • Tavinn
  • Temple
  • Time travel
  • Toll
  • Trade
  • Undeclared
  • Venue
  • Warehouse
  • Wine
  • Workshop

• Construct
  • Bridge: Bridge of smiles
  • Cemetery: God-Kings graveyard
  • Enclosure: Sacred lizard beasts enclosure
  • Fountain: Fountain of wishes
  • Gate: Gate of delightful ecstasy
  • Mine: Dwarven colony mine shaft
  • Moat: Great moat
  • Monument: Stele of remembrance
  • Pool: Elemental pool
  • Rampart: Northern ramparts, Wall of Muggy Finepalette
  • Tower: Beacon towers

• Grotto: Tolerated academy of magic

• Ruin: Ruins of Cuss Castle

• Subdivision
  • Floor/Level
  • Room: Forbidden library

• Temporary, eg, Traveling Inn

• Itinerary: the adventurer's path
• Network: the sewers

It can also be useful to categorize various Lot types by the genre of activity conducted in them.

• Military for law enforcement & military activities
  • Barracks (& other Military Lodgings)
  • Fortifications (Gates, Ramparts, Towers…)
  • Guardhouse
  • Jail

• Official for administrative activities
  • Administration
  • Council
  • Court
  • Guild
  • Lazaret
  • Palace

• Religious for all religious activities
  • Cemetery
  • Crypt
  • Mausoleum
  • Chapel
  • Church
  • Hospital
  • Hospice
  • Monastery
  • Temple

• Trade for all commerce-related activities
  • Food & Drinks
  • Lodging
  • Manufacture
  • Market
  • Port
  • Service
  • Shop
  • Warehouse
  • Workshop

• Venue for all public activities not falling in one of the above genres
  • Entertainment (Opera, Theaters, Gambling, etc.)
  • Education (Colleges, Libraries, Museum, Observatory, Schools & Universities, etc.)
  • Secret (venues hidden or protected from the general public)
  • Sport (Amphitheater, Hippodrome, etc.)

• Undeclared for all private activities not falling in one of the above genres
  • Habitation
  • Archpass

Concepts are also classified according to their type (and, sometimes sub-type).

• Profession:
  • Lamb the Snooper
  • Evarilion Bombogarogan, Consulting Sleuth

• Race:
  • Sir Florimont. Mountain Dwarf
  • Padrogan, Gopneldaun porter-freighter

• Title, in alphabetical order:
  • Valdenath, High Priest of the Temple of the Skull
  • Nin I. the God-King

• Disease:
  • Segur & Knight's disease

• Moment in time:
  • The month of Enfofcold
  • The day of rest, Selenia
  • The hour of the Knife. at lunch time

• Celebration on the calendar:
  • Ice Mists Festival, marking the Winter solstice
  • The Ball of Flutters

Organizations are groups of Livings capable of demonstrating Proof of Humanship and assembled around a common cause or purpose, their Domain of expertise. Depending on the Powers it holds, an Organization can be a:

Councils are organizations that hold (compulsory) Voting, (advisory) Polling and/or (meta) Governance powers & privileges over their Domain(s) of expertise:

• Voting councils have the power to hold procedurally-binding votes over matters falling under their own Domain of Expertise.
  Example:The God-King's Inner Council has voting powers over all matters under the purvey of the four Temples, with a tie-break going to the High Priest controlling the domain of expertise being voted upon.
  

• Polling councils have the power to poll their constituents over matters concerning their Domain of Expertise. The results of such polls is non-binding, which doesn't mean it shall carry no weight however.
  Example:The Deferential Council of Noble-Burghers.
  

• Governance councils have meta powers that go beyond the regular purview and scope of polls and votes and can reach out to the real world.
  Examples: The Laelith Foundation, the Lithos.
  

Fellowships are organizations that have a direct say or control over a set of beliefs in Laelith, as expressed in the Wiki's Lore pages. As such, Fellowships usually have supervisory editing and tagging rights over Wiki pages corresponding to their beliefs set.

Beliefs are layers of lore one can choose to make visible or not, in the wiki and on the map.

• Faction: Religious faction adhering to a specific set of beliefs.
  Examples: Worshippers of the Invisible Light, Worshippers of the Flame Dragon

Guilds are the only type of organizations owning a multi-sig wallet that can hold their common resources (NFTs, digital currency and other shared digital resources). Guilds are organized around a common purpose or activity belonging to one of the following sub-types:

• Ad Hoc: Catch-all for informal and misc. associations not belonging to any of the sub-types below.
  Examples: The Regenerative Mushroom, the Traditional Kaocalian Dance Circle

• Band: Party of adventuring PCs or NPCs.
  Examples: The Wanderer's Company, the Bostonn Vigilantes

• Brotherhood: Religious order (Sisterhood when all female).
  Examples: Brotherhood of the Earth Mother, the White Brotherhood

• Cenacle: Temple or Divine-royal administration.
  Examples: Cenacle of Continuities, Cenacle of Trades

• College: Learning society.
  Examples: The College of Illusionists, the School of Magic

• Company: Military or martial order.
  Examples: The Corps of Protectors, the Spirit Brigade, the Scrape

• Corporation: Trade or merchant guild.
  Examples: The Boonzill Express, the Tavinnkeepers Guild

• Crafting Guild: Dedicated to the crafting of goods, digital or IRL.
  Example: The Guild of Armorers & Blacksmiths

• Gang: Criminal or illicit org.
  Examples: Guild of the Bleeding Dagger, the Severed Tongue, the Pendular Hermits

• Tribe: Race and kin-based groups.
  Examples: The Blood Teeth, the Dwarven Kin society

• Troupe: Artists and performers group.
  Examples: The Flap Seat, the Wooden Prince Company

Tags are also used to designate specific properties of certain guilds. For instance:

• Secret: Designates secret guilds.
  Examples: The Litholysis, the Dwarven Kin society

Each Category/sub-category/type/sub-type is designed to be mutually exclusive from all others, so that an index entry can only ever belong to one, and one only, category/sub-category/type/sub-type. If an index entry belongs to two (or more) distinct categories, this simply means there are multiple entries with the same name, each belonging to a distinct category.

The Laelith API can give you the up-to-date dictionary of the Ontology:

https://api.laelith.com/ontology