closure Antonyms

stairway rima rift renewal reinstatement reestablishment reenlistment recommitment reaffirmation radix rabbet rime rimose rip staircase split spiracle socket slot slit seating scissure rupture rudiment punctured puncture prolongation opening onset occurrence nucleus nascency milestone materialization manhole longevity lodgment opener oriel orifice pretermission preterition porthole perpetuation perforation peephole outstart outset ostium origination