18-letter words containing t, o, s, f, e, n
- visiting professor — a professor from another institution invited to teach at a university or college for a limited period, usually for a semester or one academic year.
- warrant of fitness — a six-monthly certificate required for motor vehicles certifying mechanical soundness
- woman of the house — lady of the house.
- writ of assistance — a writ issued by a superior colonial court authorizing officers of the British crown to summon aid and enter and search any premises.
- zone of saturation — the ground below the water table