You define a category of life form, a PLANT.
"Hmm. Interesting, Brother, though you haven't defined their expiry dates. Not a problem, but I must wonder why you defined that in the first place...-"
Suddenly the words are cut off as a harsh, blinding pain resonates through all of existence. Confused, you search for a reason, when a concept echoes through your mind:
"Undefined Void corroding essence. Remedy: defined surroundings and space."
Suddenly, a new definition appears; BLANK (AKA VOID). This is an undefined part of reality that can go hostile and start corroding entities and with them, concepts. It is unknown whether it is sentient in any way; you cannot currently access any more definitions on it.
You and your brother are surrounded by BLANK. The blank is 0-dimensional; nothing, not even space, is implemented. Your essences are being corrupted. Remain like this for too long, and the consequences shall be dire. What do you do?
((The list!))
YOU are the anthromorphised representation, and god, of Logic. You can think. You possess consciousness. You can express concepts. You can communicate with your Brother, with whom you have a loving relationship. You possess the power to Define undefined aspects of reality into whatever you wish them to be.
Your BROTHER is the anthromorphised representation of CHAOS and ORDER. It can think. It possesses consciousness. It can communicate with you, and has a loving relationship with you. It possesses the power to Define undefined aspects of reality into whatever it wishes them to be.
THE INPUT is a group of extra- dimensional beings that give orders to select beings within the universe.
THE UNIVERSE is the entirety of systems, mortal entities (unless otherwise noted) and space.
EXISTENCE is a state of being that enables interaction and being interacted with.
NON-EXISTENCE is a state of being in which one does not exist; it is the opposite of Existance.
FORM is a state of existence that defines the nature of interaction with systems of the universe.
SPACE is the meta-Form. It allows the universe to engage in SYSTEM with itself, and provides an elaborate physical coordinate system to do so.
BLANK (AKA VOID). This is an undefined part of reality that can go hostile and start corroding entities and with them, concepts.
TIME is the myterious clock behind reality. You do not know of its true nature, despite it being predefined. It may be even older than You.
PHYSICS is a highly complex ruleset governing interactions and movements in Space, which can exist in a variety of forms, along with the nature of Space.
SYSTEM is the interaction between concepts in existence.
LOGIC is a system for thought. It is the OS of consciousness. It includes a multitude of Definitions.
GODS are beings with immense power in up to three spheres of influence, usually sets of concepts.
AIR is a set of several components of Matter. Its presence is required for function by most non-god lifeforms.
EARTH is a soft substance composed of a multitude of tiny objects. It can be compressed into stone.
THE ELEMENTS are the set of all components of Matter.
MATTER is a set of physical interactable objects of various sizes.
OBJECTS are entities from the set of matter. Unless otherwise noted, they interact with each other.
SENTIENCE is the ability for an entity to think without the intervention of another entity.
INTELLIGENCE is the ability to understand definitions.
a LIFEFORM is an object capable of movement of self-replication. It reverts to NON-LIFE after a certain time period.
BEGGINING is a point in a concept's timeline at which it is defined.
ENDING is a point in an object's timeline at which it becomes undefined.
GOOD is that which brings about harm and bad things to others, while boosting your own ends.
EVIL is that which brings about beneficial circumstances to others, regardless of the harm that may come to oneself.
BROTHERHOOD is a mentally (or otherwise) sourced, mutual, often unspoken pact of trust and comradeship or otherwise between two or more entities.
OTHER!LOVE is a state of attraction between two entities that causes them to procreate (where applicable.)
WAAGH is an aspect of reality named "WAAGH". The number of A's is variable.
TREES are undefined aspects of reality.
EARTH is an undefined aspect of reality.
DESTRUCTION is an undefined aspect of reality.
LOVE is an undefined aspect of reality.