Dreaming of knife or other similar sharp objects is considered both good and bad as per dream meaning and interpretation. Dreaming of killing someone with knife means that you will need to have control over your anger and actions. The dream is a kind of warning that in near future you might cause harm to yourself through your angry actions.
Simply dreaming of knife means you will face some difficult situations soon.
Dreaming of knife cutting vegetables or leaves means you will achieve success in exams or interview. It is a positive signal about career, job and profession.
Dreaming of knife with blood is a sign of diseases, accident and near death experience.
Dreaming of knife harming or cutting animals is a sign of death in family – friends or relatives.
Dreaming of knife falling down is a sign of accidents due to carelessness.
All these dreams of knife are just asking you to be careful and to remain patient and silent in near future.
There will be several provocations but you need to maintain equanimity and overcome them.