1. Home
2. Idioms
3. base (up)on

base (up)on

---

---

base (up)on

To found or root something on a particular idea or occurrence. A noun can be used between "base" and "on" or "upon." My love of science is based upon an interest in experimentation. Unfortunately, she has a low opinion of me. I think she based it on our first meeting, which didn't go well.

See also: base