18-letter words containing r, e, f, n, c, g
- six-finger country — an isolated area considered as being inhabited by people who practise inbreeding
- state of emergency — If a government or other authority declares a state of emergency in an area, it introduces special measures such as increased powers for the police or army, usually because of civil disorder or because of a natural disaster such as an earthquake.
- sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
- triangle of forces — a triangle whose sides represent the magnitudes and directions of three forces whose resultant is zero and which are therefore in equilibrium
- two-tier financing — a form of lending in which the debt is divided into two separate parts, as in a first and second mortgage held by an individual on a single property
- video conferencing — the holding of videoconferences.