first; marking the start; a way in or out; a beginning; a position (in a business, firm) which is vacant
gap, hole
Cases of word usage
1) an opening especially one that admits light into a camera (aperture)
2) a container made of paper, cloth, leather, plastic etc with an opening at the top, used for carrying things (bag)
3) an act with special clothes, actions etc, such as a wedding, funeral, the opening of a new public building etc (ceremony)
4) the narrow opening of the womb (cervix)
5) a deep opening or crack in the ground (chasm)
6) a narrow opening or crack (chink)
7) a small crack or opening e.g. in a wall (cranny)
8) a narrow opening or crack (in a rock etc) (crevice)
9) an act, result, of cutting; opening made by a knife or other sharp-edged tool etc (cut)
10) a narrow opening (fissure)