- free calculus
- free code
- free commutative ring
- free composition
- free decomposition
- free derivative
- free differential calculus
- free distance
- Freedman, M.H.
- Freedman theorem
- free element
- free embedding
- free endpoint
- free endpoint variational problem
- free energy
- free entropy
- free estimator
- free extension
- free face
- free factor
- free family
- free field
- free functor
- free generator
- free group