under

preposition

1. 1.

   In or to a position below or lower than something else.

2. 2.

   Below a particular level, limit, or amount.

3. 3.

   Subject to the authority, control, or influence of.

4. 4.

   In accordance with or subject to.

5. 5.

   During the period of rule or governance of.

6. 6.

   Below something or to a lower position.

7. 7.

   Lower in amount, degree, or position (usually in compounds).