noun
A cloth-covered frame used for protection against rain or sun.
(figurative) Anything that provides similar protection.
(figurative) Anything that provides similar overarching coverage of a range of concepts, purposes, groups, etc.
(ice hockey) A strategy in which five players in the offensive zone form an umbrella-shaped formation around the opposition's goal net.
The main body of a jellyfish, excluding the tentacles.
(photography, television) An umbrella-shaped reflector with a white or silvery inner surface, used to diffuse a nearby light.
verb
(transitive) To cover or protect, as if by an umbrella.
(intransitive) To form the dome shape of an open umbrella.
(intransitive) To move like a jellyfish.