12-letter words containing p, r, o, f, a
- pro-suffrage — the right to vote, especially in a political election.
- professional — following an occupation as a means of livelihood or for gain: a professional builder.
- professorate — the office or the period of service of a professor.
- professorial — a teacher of the highest academic rank in a college or university, who has been awarded the title Professor in a particular branch of learning; a full professor: a professor of Spanish literature.
- profile drag — the sum of the surface friction drag and the form drag for a body moving subsonically through a fluid
- profile plan — a diagrammatic fore-and-aft elevation of the hull of a vessel, showing bow and buttock lines, stations, water lines, diagonals, decks, bulwarks, etc.
- prolifically — producing offspring, young, fruit, etc., abundantly; highly fruitful: a prolific pear tree.
- proofreading — correction of text
- protest flag — a flag hoisted by a racing yacht to advise the judges of a violation of the rules by another yacht.
- purification — to make pure; free from anything that debases, pollutes, adulterates, or contaminates: to purify metals.
- push forward — keep advancing
- putrefaction — the act or process of putrefying; the anaerobic decomposition of organic matter by bacteria and fungi that results in obnoxiously odorous products; rotting.
- reperforator — (especially in teletype transmission) a machine for punching a duplicate perforated paper tape of incoming messages so that they may later be retransmitted: used for automatic typesetting.
- run-of-paper — R.O.P.
- scratchproof — resistant to scratches.
- shatterproof — designed or made to resist shattering: shatterproof glass in automobile windows.
- sloop of war — (formerly) a sailing or steam naval vessel having cannons on only one deck.
- soprano clef — a sign locating middle C on the bottom line of the staff.
- stand up for — (of a person) to be in an upright position on the feet.
- superfrontal — a piece of cloth placed over an altar and frontal and hanging down a few inches over the front of the altar
- tamper-proof — resistant to interference, alteration
- to play fair — If you say that someone plays fair, you mean that they behave or act in a reasonable and honest way.
- top grafting — grafting in the top, as of a tree, in order to replace existing branches with those of a more desired variety or form.
- unperforated — pierced with a hole or holes: Punch out along the perforated line.
- unprofitable — being without profit; not showing or turning a profit: a series of unprofitable ventures.
- up for grabs — to seize suddenly or quickly; snatch; clutch: He grabbed me by the collar.
- waterproofed — Having been made waterproof.
- waterproofer — One who, or that which, makes waterproof.
- weatherproof — able to withstand exposure to all kinds of weather.