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Articulated with relatively strong pressure of the airstream below the glottis, as in English (p) and (t) compared with (b) and (d).
A fortis consonant.

[Latin, strong; see fort.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈfɔːtɪs) phonetics
(Phonetics & Phonology) (of a consonant) articulated with considerable muscular tension of the speech organs or with a great deal of breath pressure or plosion
n, pl -tes (-tiːz)
(Phonetics & Phonology) a consonant, such as English p or f, pronounced with considerable muscular force or breath pressure
[Latin: strong]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈfɔr tɪs)

adj., n., pl. -tes (-tēz). adj.
1. (of a consonant sound) pronounced with considerable muscular tension and breath pressure, resulting in a strong fricative or plosive sound, as the sounds (p, t, k, ch, f, th, s, sh) in English. Compare lenis.
2. a fortis consonant.
[1905–10; < Latin: strong, powerful, firm]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in classic literature ?
Nay, Seneca adds niceness and satiety: Cogita quamdiu eadem feceris; mori velle, non tantum fortis aut miser, sed etiam fastidiosus potest.
I could plainly discover whence one family derives a long chin; why a second has abounded with knaves for two generations, and fools for two more; why a third happened to be crack-brained, and a fourth to be sharpers; whence it came, what Polydore Virgil says of a certain great house, NEC VIR FORTIS, NEC FOEMINA CASTA; how cruelty, falsehood, and cowardice, grew to be characteristics by which certain families are distinguished as much as by their coats of arms; who first brought the pox into a noble house, which has lineally descended scrofulous tumours to their posterity.
de Treville had served him so faithfully in his wars against the league that in default of money--a thing to which the Bearnais was accustomed all his life, and who constantly paid his debts with that of which he never stood in need of borrowing, that is to say, with ready wit--in default of money, we repeat, he authorized him, after the reduction of Paris, to assume for his arms a golden lion passant upon gules, with the motto Fidelis et fortis. This was a great matter in the way of honor, but very little in the way of wealth; so that when the illustrious companion of the great Henry died, the only inheritance he was able to leave his son was his sword and his motto.
Gurugram (Haryana) [India], July 09 (ANI): Fortis Healthcare has announced of the sale of its nearly 29 per cent stake in Mauritius-based Medical and Surgical Centre Ltd (MSCL).
Fortis president and CEO John Wynne says, "Label Technology is an ideal fit within Fortis as the acquisition creates a true national footprint for our organization while broadening our product offerings across multiple vertical markets.
Fortis' legal team filed a motion that requested the police return his Ford Raptor pickup truck, Chevy Suburban, Jeep Cherokee, two cellphones, several computers, a server, hard drive, and two external drives.
Fortis Financial, Inc., the parent company of Fortis Private Bank, has announced it has appointed 29-year banking veteran Lyne Andrich, former chief operating officer and CFO of CoBiz Financial, to the board of directors, the company said.
In a regulatory filing, IHH Healthcare, however, said the apex court's order does not impact acquisition of 31.1 percent stake in Fortis for RS 4,000 crore, which was completed on November 13.
Fortis and ITC shareholders approved the acquisition at shareholder meetings held on 5 May and 22 June 2016, respectively.
In June 2015, Fortis began marketing and branding a 60-story residential condominium that is under construction at 161 Maiden Lane, Manhattan, as "One Seaport Residences."
She also brought a claim in damages against Fortis for breach of contract alleging the car did not comply with its description.