- osier - flexible twig of a willow tree
--1 is a kind of withe, withy
- osier - any of various willows having pliable twigs used in basketry and furniture
--2 is a kind of willow, willow tree
--2 is a member of Salix, genus Salix
--2 has particulars: - osier - any of various willows having pliable twigs used in basketry and furniture