拒止 is read as きょし (kyoshi) and means refusal.
きょし
kyoshi
きょひ
refusal
きょぜつ
こばむ
to prevent (from doing)
きょひけん
right of veto
きょぜつはんのう
(organ) rejection
きょしょくしょう
anorexia
きょひはんのう
rejection
きょぜつさてい
final rejection (e.g. of a patent)
きょひしょぶん
(judicial) denial
きょしょく
refusing food
きょぜつかん
feelings of rejection
きょひる
to refuse