1) Canvas 2) Canvass 3) Cause to become widely known 4) Circularise 5) Distribute circulars to 6) Make circular 7) Poll 8) To make circular 9) To make circular in shape 10) To send circulars to 1) Circularise 2) Disseminate 3) Popularise 4) Popularize 5) Vulgarise 6) Vulgarize 
[v] - canvass by distributing letters 2. [v] - canvass by using a questionnaire 3. [v] - distribute circulars to 4. [v] - make circular
circularize 1. To publicize with circulars. 2. To canvass or to take a poll using a questionnaire.
circularise verb distribute circulars to
to circulate (a letter, memorandum, etc.). · to send circulars to. · to publicize, esp. by mailing or handing out circulars. · to make circular.