As a fighter, you gain the following class features:
Hit Points: commonly abbreviated HP, are a number measuring the amount of damage a creature, character, or object can take before being killed, disabled or destroyed. They can be considered an abstract representation of life-force, health, endurance, luck and the sort of favoritism that follows main protagonists and antagonists in fictional stories. Receiving damage - another number representing an instance of injury or other harmful occurrence, usually a hostile attack of some sort - reduces their hit point total by an amount equal to the damage value.
Hit points at 1st level: 10 + Constitution modifier
Hit Dice: 1d10 per fighter level
Proficiency is one of the most important mechanical parts of a character. It is a central part of any character or creature's statistics, and it's a defining part of what they are good at. Proficiencies come from several different sources, and apply to a variety of subjects, but they are measured by the same bonus. You either have the proficiency or you don't. You will gain proficiencies from your character's race, their class, their background, and occasionally from some other sources.
Armor: All armor, shields
Weapons:Simple weapons, martial weapons
Tools: None
Saving Throws: Strength, Constitution
Skills: Athletics, Acrobatics
You adopt a particular style of fighting as your specialty. Choose one of the following options. You can't take a Fighting Style option more than once, even if you later get to choose again.
Archery - You gain a +2 bonus to attack rolls you make with ranged weapons.
Defense - While you are wearing armor, you gain a +1 bonus to AC.
Dueling - When you are wielding a melee weapon in one hand and no other weapons, you gain a +2 bonus to damage rolls with that weapon.
Great Weapon Fighting - When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the two-handed or versatile property for you to gain this benefit.
Protection When a creature you can see attacks a target other than you that is within 5 feet of you, you can use your reaction to impose disadvantage on the attack roll. You must be wielding a shield.
Two-Weapon Fighting - When you engage in two-weapon fighting, you can add your ability modifier to the damage of the second attack.
You have a limited well of stamina that you can draw on to protect yourself from harm.
On your turn, you can use a bonus action to regain hit points equal to 1d10 + your fighter level.
Once you use this feature, you must finish a short or long rest before you can use it again.
Instead of using a weapon to make a melee weapon attack, you can use an unarmed strike: a punch, kick, head-butt, or similar forceful blow (none of which count as weapons). On a hit, an unarmed strike deals bludgeoning damage equal to 1 + your Strength modifier. You are proficient with your unarmed strikes.
Two-Weapon Fighting When you take the Attack action and attack with a light melee weapon that you're holding in one hand, you can use a bonus action to attack with a different light melee weapon that you're holding in the other hand. You don't add your ability modifier to the damage of the bonus attack, unless that modifier is negative. If either weapon has the thrown property, you can throw the weapon, instead of making a melee attack with it.
You can make an opportunity attack when a hostile creature that you can see moves out of your reach. To make the opportunity attack, you use your reaction to make one melee attack against the provoking creature. The attack occurs right before the creature leaves your reach