Since cards are getting claimed quickly, I will briefly outlines some meanings behind each. Their names can be misleading.
My Disclaimer: The entire tarot system is set up vaguely on purpose to allow much room for individual interpretation. There is no correct meaning behind any of these cards. I am simply outlining one or more common interpretations for each from my sources. If the reader is using the narrative method (like in the movie The People Under the Stairs if I remember that scene correctly), these meanings do not even get used but instead the reader builds a story based upon the action and details in each illustration.
THE MAJOR ARCANA
These cards are unique to tarot because they belong to no specific suite. I will agree that they are the most iconic and fun, but in actual readings, the Minor Arcana are more useful. Major Arcana cards are broad in their meanings. Because I am very short on time, I will merely outline some brief meanings of each card and will not describe how they are traditionally illustrated. If you would like for you illustration to resemble the classical (which is in no way required nor even suggested), you can easily enough look it up online; it will be the first image when you google the term "tarot" and the name of the card.
THE FOOL
Also sometimes called BEGINNING
It can mean fresh starts or childhood.
THE MAGICIAN
It can mean a transformation. When describing a character, it was indicate a trickster or communicator.
THE HIGH PRIESTESS
also known as THE ORACLE in some more modern decks
Internal guidance, wisdom, hidden or obscure knowledge.
THE EMPRESS
called MOTHER NATURE in some decks
Nature's Bounty or to a lesser degree fertility and abundance
THE EMPEROR
It can mean authority. As a character, the Emperor is sometimes a leader, organizer, or even God
HIEROPHANT
a.k.a. TEACHING
It means teaching but to a lesser extant can be interpreted as learning or even tradition
LOVERS
This is one of those cards with a misleading meaning. It can mean actual lovers, but more often it signifies a commitment. That commitment could be a marriage, a partnership, a contract, or a promise.
CHARIOT
This can mean forward movement. Other ways to describe the concept would be drive or staying on track. My primary source made the interesting choice of illustrating her Chariot as a train.
STRENGTH
This means the type of strength that we could call grace under pressure. Related concepts/alternate interpretations include confidence, courage, poise, and self control.
HERMIT
This can mean either Independence or solitude depending on whether the character wants to be alone. Individualism is another likely interpretation.
WHEEL OF FORTUNE
This means Luck. It involves gambling, ups, and downs.
JUSTICE
It means just what it says, Justice. That could involve the courts, general fairness and objectivity, or truth.
HANGED MAN
There are two main ways to interpret this card. It can means suspension (as in not moving, a holding pattern), or it can mean a new perspective. As a character, the Hanged Man is often a traitor.
DEATH
This is the most likely card to misinterpret. It usually simply means change, not literal death. Whereas the Magician is a more purposeful change forcing his will upon the world, the Death card is a more inevitable change like the circle of life.
TEMPERANCE
This can mean moderation. Related concepts include tolerance and meditation. As a character, the Temperance card is a mediator.
THE DEVIL
also sometimes called CHAINS
This card can mean a few different things: confinement, enslavement, or misplaced values
THE TOWER
This means removal. It makes more sense if you look at the illustrations which often involve a tower falling. In a story, the appearance of this card can signify a set back. A negative interpretation might be that a system is unstable or collapsing. A positive interpretation might be the removal of obstacles.
THE STAR
The can mean a wish. As a characteristic, it can indicate awe.
THE MOON
This can mean the unknown or hidden, like the dark side of the moon. Even moonlight is merely a reflection of something else.
THE SUN
This can mean a spectacle. As a character, the Sun card can be an idol or performer. Characteristics include charisma but also inflated ego and burn out.
JUDGEMENT
sometimes called CALLING
This can mean destiny.
WORLD
This can mean completion and wholeness, even fulfillment. The world is the final card in the Major Arcana and the end of a story.