something that discourages a certain activity; something that warns that you should not do a certain thing
Studies have proven that the death penalty is not an effective deterrent from crime.
DETER + RENT. A high rent IS ALWAYS A discouraging factor FOR TENANTS. [hindi] dete bola rent, nahi diya. bechara discourage ho gaya, sala rent lene mein itne hindrances. you can also imagine deterrent as detergent + ant; if you put detergent in front of ant it will obstruct and hinder its path