Adverb
Very strongly; mightily; to a great degree.
Principally; chiefly.
Source: Webster's dictionaryWar is mainly a catalogue of blunders. Winston Churchill
The progress of society is mainly the improvement in the condition of the workingmen of the world. Rutherford B. Hayes
Pure mathematics is on the whole distinctly more useful than applied... For what is useful above all is technique, and mathematical technique is taught mainly through pure mathematics. G. H. Hardy
Education consists mainly in what we have unlearned. Mark Twain
Religion must mainly be a matter of principles only. It cannot be a matter of rules. The moment it degenerates into rules, it ceases to be a religion, as it kills responsibility which is an essence of the true religious act. Bhimrao Ramji Ambedkar
I am not the only person who uses his computer mainly for the purpose of diddling with his computer. Dave Barry