jag - a slit in a garment that exposes material of a different color underneath; used in Renaissance clothing

opening - a vacant or unobstructed space that is man-made; "they left a small opening for the cat at the bottom of the door"

slot - a small slit (as for inserting a coin or depositing mail); "he put a quarter in the slot"

vent - a slit in a garment (as in the back seam of a jacket)

female genital organ, female genitalia, female genitals, fanny - external female sex organs; "in England `fanny' is vulgar slang for female genitals"

imprint, impression, depression - a concavity in a surface produced by pressing; "he left the impression of his fingers in the soft mud"

scotch, score - a slight surface cut (especially a notch that is made to keep a tally)

crack, scissure, cleft, crevice, fissure - a long narrow opening

cut - separate with or as if with an instrument; "Cut the rope"

incise - make an incision into by carving or cutting