Nouns

(n)absencethe state of being absent“he was surprised by the absence of any explanation”
(n)absencefailure to be present
(n)absencethe time interval during which something or somebody is away“he visited during my absence”
(n)absence, absence seizurethe occurrence of an abrupt, transient loss or impairment of consciousness (which is not subsequently remembered), sometimes with light twitching, fluttering eyelids, etc.; common in petit mal epilepsy