A deep hole or shaft sunk into the earth to obtain water, oil, gas, or brine, An open space extending vertically through the floors of a building, as for stairs or ventilation, An enclosed space for receiving and holding something, such as the wheels of an airplane when retracted, intransitive verb_ To rise to the surface, ready to flow, To rise or surge from an inner source, To pour forth, adverb_ Satisfactorily or sufficiently, In a manner affording benefit or gain; advantageously, In a prudent or sensible manner, adjective_ Advisable; prudent, Of or characterized by the maintenance of good health practices. Often used in combination, In a satisfactory condition; right or proper.