IPA: /ˈɡlɒsə/
KK: /ˈɡlɑsər/
A person or tool that makes something shiny or smooth, or someone who explains or comments on a text.
The glosser made the old furniture look brand new.
Glosser originates from the word 'gloss' (from Old French *glosse*, meaning a commentary or explanation) combined with the suffix '-er' (meaning a person who). A glosser is a person who provides explanations or commentaries, particularly on texts.
Think of someone who gives 'explanations' ('gloss') — the '-er' indicates that this person is doing the action. A glosser is someone who explains or comments on something.