a recognized sequence of moves at the beginning of a game of chess | the act of rending or ripping or splitting something |
the act of opening something | a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current |
becoming open or being made open | an opening made forcibly as by pulling apart |
the first of a series of actions | a dissolute man in fashionable society |
a vacant or unobstructed space that is man-made | |
an entrance equipped with a hatch; especially a passageway between decks of a ship | |
an aperture or hole that opens into a bodily cavity | |
a possible alternative | |
the initial part of the introduction | |
the first performance (as of a theatrical production) | |
a ceremony accompanying the start of some enterprise | |
an open or empty space in or between things | |
opportunity especially for employment or promotion | |