Pronunciation: [ em-ber ]
Definition: noun
a small live piece of coal, wood, etc., as in a dying fire; the smoldering remains of a fire

Origin: Old English
Etymology: ǣmyrge, of Germanic origin; related to Old High German eimuria ‘pyre’, Danish emmer, Swedish mörja ‘embers’. The b was added in English for ease of pronunciation.
Usage:

Synonyms:
ash
cinder
Antonyms:
flame
Example:
The fire was no longer crackling and only the embers remained.