Chief (4)

(Other definitions for main that I've seen before include "Source of water" , "Most important or greatest in size" , "location for 9 [ARMADA]" , "Chief; sea; pipe" , "Principal or high seas" .)

(Other definitions for boss that I've seen before include "Head honcho" , "Governor" , "One in charge; stud" , "Domineer" , "Person managing" .)

(Other definitions for lord that I've seen before include "Feudal superior" , "Titled nobleman" , "Noble title" , "Proprietor of a manor?" , "Leader of the 'Six Hundred'" .)

(Other definitions for arch that I've seen before include "Cunning; principal" , "Vaulted opening" , "Instep of foot" , "one that may have fallen" , "Chief - opening with curved top" .)

(Other definitions for pilot that I've seen before include "Guide (e.g. of ship through harbour)" , "-- Whale; -- light" , "Aircraft captain" , "Guide, leader" , "Trial broadcast" .)

(Other definitions for ruler that I've seen before include "Potentate" , "Person in authority" , "Straight edge for drawing lines" , "Man in charge" , "Straight edge; monarch" .)

(Other definitions for basic that I've seen before include "Fundamental, forming a starting point" , "Introductory" , "At the simplest level" , "Popular programming language" , "Without frills" .)

(Other definitions for older that I've seen before include "Elder" , "Of greater age (O, not E)" , "More advanced in point of time" , "Advanced in years (but wiser?)" , "Increasingly mature" .)

(Other definitions for major that I've seen before include "Army officer immediately junior to a lieutenant colonel" , "Bigger" , "course for American students" , "John --, ex-PM" , "Of great importance" .)

(Other definitions for prime that I've seen before include "put in the picture" , "Main; make usable" , "(Of number) divisible only by itself and one" , "Number with no factor but itself and 1" , "Best - get ready" .)

(Other definitions for great that I've seen before include "Large, fantastic" , "Dickens novel about Pip" , "Big, large" , "Chief - weighty" , "Large, outstanding" .)

(Other definitions for grand that I've seen before include "Magnificent, imposing" , "Majestic" , "Exalted, magnificent" , "Impressive, large" , "great distinction" .)

(Other definitions for vital that I've seen before include "alive" , "Most important, like certain body organs" , "Necessary for life" , "Imperative" , "Critical, necessary" .)

(Other definitions for owner that I've seen before include "The one in lawful possession" , "Possessor, proprietor" , "The person in lawful possession" , "One that secured" , "Holder, possessor" .)

(Other definitions for first that I've seen before include "& 2 Early new year arrivals bringing good luck" , "Cardinal" , "Preliminary" , "to begin with" , "Top degree class" .)

(Other definitions for guide that I've seen before include "Director" , "(Tourist) book" , "Lead or conduct" , "Mentor" , "Tour leader" .)

(Other definitions for focal that I've seen before include "Type of length or point" , "sort of length" , "and 21 Across: Centre of attraction" , "Of the point of convergence" , "-- Length, -- plane; -- point" .)

(Other definitions for front that I've seen before include "Impudence" , "Seaside promenade" , "Boldness of manner" , "Present" , "Facade" .)

(Other definitions for leader that I've seen before include "Chief or front man" , "source of inspiration" , "Main editorial in a newspaper" , "important member of orchestra" , "Principal player in an orchestra" .)

(Other definitions for staple that I've seen before include "Raw material" , "important things to eat" , "Paper-fastening device" , "Fastener - principal" , "Important; paper fastener" .)

(Other definitions for principal that I've seen before include "Chief, main" , "Head teacher, say" , "Main, leading" , "Capital invested" , "Chief - teacher?" .)

(Other definitions for premier that I've seen before include "First (minister)" , "Foremost" , "Aberdeen or Salisbury?" , "Chief minister" , "First in importance" .)

(Other definitions for headman that I've seen before include "Boss" , "Chieftain" , "Leader" , "Village chief" .)

(Other definitions for primary that I've seen before include "Of chief importance" , "Principal" , "Paramount" , "The colours from which all others can be made" , "Of the first order" .)