I. ˈsü-ə-ˌsīd noun
Etymology: Latin sui (genitive) of oneself + English -cide; akin to Old English & Old High German sīn his, Latin suus one's own, sed, se without, Sanskrit sva oneself, one's own
Date: 1643
1.
a. : the act or an instance of taking one's own life voluntarily and intentionally especially by a person of years of discretion and of sound mind
b. : ruin of one's own interests
political suicide
c. : apoptosis
cell suicide
2. : one that commits or attempts suicide
II. adjective
Date: 1773
: of or relating to suicide ; especially : being or performing a deliberate act resulting in the voluntary death of the person who does it
a suicide mission
a suicide bomber
III. verb
( sui·cid·ed ; sui·cid·ing )
Date: 1841
intransitive verb
: to commit suicide
transitive verb
: to put (oneself) to death