1. Most important element
   "the main doors were of solid glass";
   - chief, primary, principal, master
    
2. Of force; of the greatest possible intensity
   "by main strength"
    
3. (of a clause) capable of standing syntactically alone as a complete sentence
   "the main clause in a complex sentence has at least a subject and a verb";
   - independent

1. A principal pipe in a system that distributes water, gas, electricity or that collects sewage
   "Workers repaired a break in the water main"
    
2. The lowermost sail on the mainmast
   "They unfurled the main to catch the wind";
   - mainsail
    
3. Any very large body of (salt) water
   "Sailors who spend months on the main";
   - briny [Brit]

Sounds like: mailers, malmain, mane, M

Derived forms: mains

See also: important, intense, of import

Type of: body of water, canvas, pipage, pipe, piping, sail, sheet, water

Part of: base, hydrosphere, infrastructure

Encyclopedia: Main, Robert