ember UK /ˈɛm.bə/US /ˈɛm.bɚ/noun 2adjective 1forms 1 noun2 •A piece of coal or wood glowing by heat; a hot coal. •Smoldering ash. adjective1 •Making a circuit of the year or the seasons; recurring in each quarter of the year, as certain religious days set apart for fasting and prayer.ember fastsember days formsembers