Definitions:

1. a formation of military planes maintained over ground operations or targets noun
   • an air umbrella over England
2. covering or applying simultaneously to a number of similar items or elements or groups adjective
   • an umbrella organization
3. having the function of uniting a group of similar things noun
   • the Democratic Party is an umbrella for many liberal groups

NearBy Words:

• umbrella-shaped
• umbrellalike
• umbrellawort