firm 2 
(fûrm)
(fûrm)n.
1. A business enterprise.
2. An unincorporated business, particularly a partnership.
3. The name or designation under which a company transacts business.
[Italian firma, from firmare, to ratify by signature, from Medieval Latin firmāre, from Latin, to confirm, from firmus, firm; see dher- in the Appendix of Indo-European roots.]
- interconvertible
- intercool
- intercooler
- intercostal
- intercourse
- intercrop
- intercultural
- intercurrent
- intercut
- interdenominational
- interdental
- interdentally
- interdepartmental
- interdependence
- interdependency
- interdependent
- interdict
- interdiction
- interdictive
- interdictively
- interdictor
- interdictory
- interdisciplinary
- interest
- interested