Common words:
* Hypocrisy: The practice of claiming to have moral standards or beliefs to which one's own behavior does not conform.
* Hypoallergenic: Not likely to cause an allergic reaction.
* Hypothetical: Based on an assumption or supposition.
* Hypotenuse: The side of a right triangle opposite the right angle.
* Hypodermic: Relating to the subcutaneous tissue.
* Hypothermia: A condition in which the body temperature falls below 95 degrees Fahrenheit.
* Hypochondriac: A person who is excessively concerned about their health.
Less common words:
* Hypoglycemia: Low blood sugar.
* Hyponatremia: A low level of sodium in the blood.
* Hypothyroidism: A condition in which the thyroid gland does not produce enough thyroid hormone.
* Hypoxia: A condition in which the body is deprived of adequate oxygen supply.
* Hypobaric: Relating to low pressure.
* Hypomania: A mild form of mania.
Scientific and medical terms:
* Hypothalamus: A region of the brain that controls body temperature, hunger, thirst, and sleep.
* Hypophyseal: Relating to the pituitary gland.
* Hypotonic: Having a lower osmotic pressure than another solution.
* Hypoproteinemia: A deficiency of protein in the blood.
* Hypoventilation: A decrease in the rate and depth of breathing.
* Hypoplasia: The incomplete development of an organ or tissue.
* Hypopigmentation: A decrease in the amount of melanin in the skin.
This is not an exhaustive list, but it provides a good starting point for understanding the prefix "hypo" and its uses in various words.