- Thereon is defined as on that or on it.
An example of thereon is things growing on the earth such as in this quote by Kate Chopin: “It is greater than the stars - that moving procession of human energy; greater than the palpitating earth and the things growing thereon. “
- on that or it
- On or upon this, that, or it.
- Archaic Following that immediately; thereupon.