- Fact-based: based on facts; supported by evidence.
- Factual: relating to or based on facts; true or accurate.
- Factually: in a factual manner; according to the facts.
- Faction: a group or party within a larger group, especially when in opposition to the main body.
- Factious: causing or tending to cause disagreement or disunity within a group.
- Factitious: artificial; not genuine or natural.
- Factory: a building or group of buildings where industrial production takes place.
- Factoring: the business of advancing money to a business against the assignment of its accounts receivable.
- Factorization: the process of expressing a number as the product of its prime factors.