Dutch-English translations for opening

aperturean aperture in a wallThis telescope has a 100cm apertureIf the generatrix makes an angle θ to the axis, then the aperture is 2θ.
hole
us
Her stocking has a hole in itThere’s a hole in my bucketThe second hole today cost me three strokes over par

interstice
opening
us
I will begin with open debate, democratic opening. Ik begin met dat open debat, de democratic opening. The daily openings of the day lily bloom gives it its name.He remembered fondly the Christmas morning opening of presents.