Chiefly it refers to:
- liberty cap, a brimless felt cap, such as the Phrygian cap or pileus, emblematic of a slave's manumission in the Ancient World.
The phrase may also refer to:
- Liberty Cap, a celebrated granite dome in Yosemite National Park
- Liberty Cap, an unusual hot spring in Yellowstone National Park
- Liberty Cap, a prominent peak on Mount Rainier
- The liberty cap (Psilocybe semilanceata), a psychedelic mushroom
- The Liberty Cap Large Cent
Famous quotes containing the words liberty and/or cap:
“Liberty may be endangered by the abuses of liberty as well as by the abuses of power.”
—James Madison (1751–1836)
“In time your relatives will come to accept the idea that a career is as important to you as your family. Of course, in time the polar ice cap will melt.”
—Barbara Dale (b. 1940)