Strength reflects pure physical power, lifting capacity, and so on. Constitution is physical health, the ability to withstand physical damage, and resistance to exposure, poison and disease. Size is a relative aggregate measure of volume and mass. If an entity has disproportionate volume and mass, this should be noted in the entity's description. Mind is an aggregation of memory, reasoning and perception.
Memory is ability to store and recall information accurately.
Perception is the power of the entity's senses, and the ability to use them to notice things which are unusual or different. Dexterity is an aggregation of agility, coordination and quickness. Agility is gross motor control. Coordination is fine motor control. Quickness is a measure of how fast an entity can respond to unusual situations and surprise.