The definition of have cold feet is to have a feeling of worry about something that is strong enough to make you reconsider your plan.
An example of have cold feet is for a groom to have doubts about marriage the morning of his wedding.
Browse entries near have cold feet
Havant and Waterloo
Havarti
Havasupai
have a free hand
have a thin skin
have nothing on someone
have not
have one's heart in one's boots
have something on someone
have yet to