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Related to razor: Razor burn

dance on the razor's edge

To do something risky or dangerous. Please, you just like him because he's the bad boy who dances on the razor's edge with his motorcycle! I like to dance on the razor's edge sometimes and do things like skydive and bungee jump.
See also: dance, edge, on

Occam's razor

A maxim that the simplest theory should be applied to a situation or experiment first. This concept is named for its ardent defender, 14th-century philosopher William of Occam. I think our initial hypothesis is too complex. Occam's razor would suggest we consider the simplest possible explanation.
See also: razor

on the razor's edge

To the point of doing something risky or dangerous. Please, you just like him because he's the bad boy who dances on the razor's edge with his motorcycle. I like to live on the razor's edge sometimes and go skydiving.
See also: edge, on


1. Literally, very sharp, like a razor. Stand back, that tool is razor-sharp! Please be careful cutting those vegetables with such a razor-sharp knife.
2. Particularly clear, perceptive, and/or intelligent. Victoria may seem quiet, but she always has these razor-sharp insights on the texts we're reading. The think tank is known for razor-sharp analysis of world affairs. A lot of people are funny, but she has razor-sharp wit.

on a razor's edge

With the possibility of failing or changing drastically very suddenly or at any given moment. The stability of the market is on a razor's edge, as banks struggle to deal with a huge number of failing mortgages and bad debts. The policy norms for the country tend to be on a razor's edge, as the majority in congress constantly shifts between the two major political parties.
See also: edge, on

sharp as a razor

1. very sharp. (*Also: as ~.) The penknife is sharp as a razor. The carving knife will have to be as sharp as a razor to cut through this gristle.
2. and sharp as a tack very sharp-witted or intelligent. (*Also: as ~.) The old man's senile, but his wife is as sharp as a razor. Sue configure things out from even the slightest hint. She's as sharp as a tack.
See also: razor, sharp

sharp as a tack

Also, sharp as a razor. Mentally acute. For example, She's very witty-she's sharp as a tack. These similes are also used literally to mean "having a keen cutting edge" and have largely replaced the earlier sharp as a needle or thorn. The first dates from about 1900, the variant from the mid-1800s.
See also: sharp, tack

on a razor's edge

If a situation is on a razor's edge it could change or be decided at any time, often in a way that is dangerous. I knew my life at that moment hung on a razor's edge. In this election Ohio is balanced on a razor's edge between Republicans and Democrats.
See also: edge, on

Occam's razor

the principle that in explaining something no more assumptions should be made than are necessary.
This principle takes its name from the English philosopher and Franciscan friar William of Occam ( c .1285–1349 ): the image is that of the razor cutting away all extraneous assumptions.
See also: razor

(as) sharp as a ˈtack

(American English) intelligent with a quick and lively mind: My grandmother’s 85 but she’s still sharp as tack.
A tack is a kind of small nail or pin.
See also: sharp, tack
References in classic literature ?
I replaced the razor in its usual drawer, unfastened the door, and called loudly for assistance.
Razor in hand, and fully lathered, it was sitting before a looking-glass, attempting the operation of shaving, in which it had no doubt previously watched its master through the key-hole of the closet.
The Frenchman followed in despair; the ape, razor still in hand, occasionally stopping to look back and gesticulate at its pursuer, until the latter had nearly come up with it.
As the sailor looked in, the gigantic animal had seized Madame L'Espanaye by the hair, (which was loose, as she had been combing it,) and was flourishing the razor about her face, in imitation of the motions of a barber.
Ethan, glaring at his face in the glass, threw his head back to draw the razor from ear to chin.
Ethan laid down the razor and straightened himself with a laugh.
NEW YORK -- Men often turn to an electric razor for a quick shave--but soon they won't have to.
Passionate about inventions and saving the planet, Constantin Ciortan and Victor Valcov co-founded "Aqua Jet Razor," a shaving razor that turns shaving into a truly "zero-waste" process.
Shaving was transformed when the cut-throat razor gave way to the first safety razor with disposable blades, invented in 1901 by King Camp Gillette and his assistant William Nickerson.
Razors Share of Shaving/Toiletries Promotions Disposable Razors 31% Shave Cream/Gel 20% Razors 15% Electric Dental Cleaning 11% Refill Razor Blades 8% Electric Shavers/Razors 5% Electric Trimmers/Clippers/Groomers 3.
To celebrate this milestone birthday, SPH Razor has just launched its revamped website which gives viewers easy and immediate access to all the videos from the SPH newsrooms in one place.
According to The Grooming Network, online razor industry has seen massive growth over the past several years.
One is the double-edge safety razor, which was invented by King Camp Gillette in 1901 and rose to prominence during World War I when they were included in American troops' shaving sets.
Razor maker Bic is celebrating 40 years of manufacturing this year.
24 sts and 26 rows = 4" (10cm) in 6-st razor patt using size 6 needles