noun
An often round and somewhat flat flavoured candy or sweet.
Any small, usually round and somewhat flat, granular piece of material; a tablet.
A medicinal pill, originally made of compressed herbs.
A candy- or sweet-like lozenge, which, when sucked, releases substances that soothe a sore throat, and sometimes vapours to help unblock the nose or sinuses.
verb
(transitive) To make into a pastille.
noun
(obsolete, art) Nonstandard spelling of pastel (“a crayon made from a type of dried paste; a drawing made using such crayons”).