IPA: /ˈɡliːnər/
KK: /ˈɡlinər/
A person who collects leftover crops from fields after the harvest.
The gleaner spent the afternoon gathering vegetables that were left behind after the farmers finished their work.
Gleaner → It is formed from "glean" (from Old French *glener*, meaning to gather grain left behind) and "-er" (meaning a person who). A gleaner is a person who gathers leftover crops after the harvest.
Think of someone who 'gathers' ('glean') what is left behind, and the '-er' just means a person. A gleaner is someone who collects what remains.