Kussmaul's sign

They are always suspended over a precipice, dangling by a slender thread that shows every sign of snapping.
How the PC Police Threaten Free Speech|Nick Gillespie|January 9, 2015|DAILY BEAST
It was hard not to take it as a sign, a personal comment on my own Jewish dating failings.
My Week on Jewish Tinder|Emily Shire|January 5, 2015|DAILY BEAST
If he did, it could be a sign that our politicians are ready to resume genuine policy-making across party lines.
Christie Blames Parents for Bad Economy|Monica Potts|January 3, 2015|DAILY BEAST
President Harry Truman kept a sign on his desk that read: “The Buck Stops Here.”
The ‘No Child’ Rewrite Threatens Your Kids’ Future|Jonah Edelman|January 3, 2015|DAILY BEAST

Even then, most of us doubted he would show up and actually sign the papers allowing him to enter the 1992 New Hampshire primary.
President Cuomo Would’ve Been a Lion|Jonathan Alter|January 2, 2015|DAILY BEAST
Ajoutez cecy, s'il vous plaist, la grande difficult qu'il y a de tirer d'eux les mots mesmes qu'ils ont.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Its continued presence in pulmonary tuberculosis is, however, a grave prognostic sign, even when the physical signs are slight.
A Manual of Clinical Diagnosis|James Campbell Todd
Neantmoins le vieil Membertou, pere du malade, conceut asss l'affaire, et me promit qu'on s'arresteroit tout ce que j'en dirois.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
En effet un soir, sa femme et enfans l'abandonnerent entierement, et s'en allerent cabaner ailleurs, pensant que c'en estoit vuid.
The Jesuit Relations and Allied Documents, Vol. II: Acadia, 1612-1614|Various
Idly his pen traced upon the paper in front of him a large X, the sign of the unknown quantity.
Uncanny Tales|Various