Translation guide
A person who goes door-to-door or approaches people in public to gather opinions, sell something, or solicit support.
A canvasser came to the door.
Loanword for 'salesman', often used for door-to-door sales. Slightly casual.
That canvasser is persistent.
Someone who goes door-to-door or stands in public to solicit votes or support for a candidate or cause.
Someone who approaches people to ask questions for a survey or poll.
General term for a surveyor or investigator, including those who conduct door-to-door or street surveys.
A canvasser asked me to fill out a questionnaire.
Specifically an interviewer for public opinion polls. More descriptive.
Someone who goes door-to-door to spread religious beliefs or collect donations.
The English word 'canvasser' covers many roles. In Japanese, you must specify the context (sales, politics, surveys, etc.). Simply saying キャンバサー is not common and may not be understood.
A canvasser for a public opinion poll was standing in front of the station.
A canvasser was going around the neighborhood collecting donations.