A volunteer is someone who willingly offers their time and assistance to help others or participate in an activity without expecting to be paid. Full definition
The build will require lots of volunteers of every skill level to construct signs, banners, posters, etc. in anticipation of this long state budget fight. (stopmpstakeover.com)
In the coming weeks we will be putting out calls for volunteers for many roles within our rescue. (littlepawsdr.org)