main
Most important one
The adjective main characterizes something that is most important, central, or prominent.
If there are a number of reasons, the main reason is the really important one.
The main character in a book, play, or movie is the one around whom the story revolves.
A main road between places carries the most traffic.
The noun main has a similar meaning in the expression in the main.
A main or mains can also be a pipe or system of pipes for gas, water, or electricity.
Fundamentally necessary
- principalChief school administrator
- chiefTop-ranking leader
- foremostHighest in importance
- leadingGuiding or pacing type
paramount · predominant · preeminent · central · key · major · core · crucial
Hollow conveyance channel
- channelPassage for transmission
- ductTube conveying fluid
- lineContinuous mark or queue
- pipelineLong-distance fluid transport tube
conduit · trunk · artery · supply · water · gas · sewer · utility
essential
Fundamentally necessary
leading · paramount · predominant · preeminent · central · key · major · core · crucial · vital
pipe
Hollow conveyance channel
pipeline · conduit · trunk · artery · supply · water · gas · sewer · utility · feed
mast
Vessel's sail support
topsail · course · foresail · mainsail · halyard · boom · shroud · spanker · gaff · mizzen
source
Point of origin
origin · starting · baseline · foundation · outset · root · seed · springboard · launching · threshold
- word ladder wordshead, tail, lead, gold, cold
- character typesprotagonist, hero, antagonist, villain, heroes
- corps humainbras, dos, pied, cartilage, cote
- rankingsrankings, first, college rankings, second, third
- player charactersalt, hero, protagonist, party member, custom character
- water managementwater supply, dam, water district, water authority, water allocation
- main manClosest male friend
- main coursePrimary dish served
- main roadPrimary vehicular thoroughfare
- main characterStory's central figure
- main dishMeal's central course
- main attractionPrimary point of interest
remain, domain, remains, mainly, remaining, mainland, mainstay, remained, mains