Ability scores

Strenght: Physical power for combat and overcoming obstacles.

Dexterity: Agility, reflexes, and precision in combat and tasks.

Constitution: Endurance, resilience, and resistance to damage and exhaustion.

Intelligence: Mental acuity, problem-solving, and knowledge-based skills.

Wisdom: Perception, intuition, and good judgment in decision-making.

Charisma: Force of personality, charm, and influence over others.

Note that the need for a high score in individual abilities varies from class to class. Strength is important for fighters, intelligence for wizards, dexterity for rogues etc. You can experiment with new play styles though which I however only recommend for advanced players.