a person or thing acting or serving in place of another; to put (a person or thing) in the place of another.

a scheme to help someone who has been ill or in prison to return to a healthy, independent, and useful life

referring to the five senses (hearing, sight, smell, taste and touch)

a system or piece of equipment that is used to get information; in medicine: a long thin instrument used for looking inside your body

a type of mathematics used for calculating such things as the slopes of curves

a poison that kills weeds

spirit of a dead person, appearing to the living

with reference to some source of heat

the chance that something might happen

the end of something