1. 
   Mainly
   Main'ly adverb [ From main strong. See Main strength.] Very strongly; mightily; to a great degree. [ Obsolete] Bacon. Shak.
   Found op http://www.encyclo.co.uk/webster/M/9
   
   
2. 
   Mainly
   Main'ly adverb [ From main principal, chief.] Principally; chiefly.
   Found op http://www.encyclo.co.uk/webster/M/9
   
   
3. 
   Mainly
   • (adv.) Principally; chiefly. • (adv.) Very strongly; mightily; to a great degree.
   Found op http://thinkexist.com/dictionary/meaning/mainly/
   
   
4. 
   mainly
   1) Above all 2) As a rule 3) Basically 4) By and large 5) Chiefly 6) Essentially 7) First and foremost 8) For the most part 9) Fundamentally 10) Generally 11) In essence 12) In general 13) In good part 14)
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/mainly/1
   
   

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