18-letter words containing f, e, i, s, a
- warrant of fitness — a six-monthly certificate required for motor vehicles certifying mechanical soundness
- wild passionflower — the maypop, Passiflora incarnata.
- wildlife sanctuary — an area where wild animals and plants are protected
- 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