adj.
1.being in force or having or exerting force
2.of or relating to a surgical operation
3.relating to or requiring or amenable to treatment by surgery especially as opposed to medicine
4.effective
5.(of e.g. a machine) performing or capable of performing operative n.
1.a person secretly employed in espionage for a government
2.someone who can be employed as a detective to collect information
Idiom of the Day
look after (someone)
to take care of someone, to watch someone, to supervise someone, to protect someone
My friend has been looking after her mother since her mother's recent illness.