19-letter words containing h, a, l, f, c
- switchblade (knife) — a large jackknife that snaps open when a release button on the handle is pressed
- teaching fellowship — a fellowship providing a student in a graduate school with free tuition and expenses and stipulating that the student assume some teaching duties in return.
- the oceanic feeling — a term coined by Sigmund Freud to describe the feeling experienced by people who have religious faith
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.