To fight as entertainment for others. / To compete in a public contest. / To debate or argue. / To act aggressively toward others.

Articles made from glass, especially drinking glasses, jugs and other tableware made of glass.

(pathology) An eye disease or disorder that is defined as a characteristic optic neuropathy, or disease of the optic nerve, possibly, if untreated, leading to damage of the optic disc of the eye and resultant visual field loss due to lack of communication between the retina and the brain, which can lead to blindness.

(Britain, euphemistic, humorous) A sharp, sudden headbutt to the nose, usually resulting in a broken nose.

(slang) Formal attire, dress clothes. / (slang) Stylish clothing.

A pair of small low-powered binoculars for use at a theatrical performance.

plural of opera glass

One or more pairs of small low-powered binoculars for use by members of the audience at a theatrical performance.

(chemistry) A solution of sodium silicate in water.

(intransitive) To look briefly (at something). / (intransitive) To graze at a surface. / To sparkle.