English: solitary bee 
Welsh: gwenynen unig
Subject: Anifeiliaid
Welsh definition: There are more than 200 species of solitary bee in Britain. They are so named because, unlike honeybees and bumblebees, they do not live in colonies.
Welsh context: Mae pryfed peillio yn cynnwys gwenyn mêl, cacwn/gwenyn bwm a gwenyn unig eraill, rhai picwn/gwenyn meirch, gloÿnnod byw, gwyfynod a chlêr hofran, a rhai chwilod a chlêr/pryfaid. 
Plural: gwenyn unig