Learn how to say Coalition correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word coalition:
an alliance or union between groups, factions, or parties, esp for some temporary and specific reason
(as modifier) ⇒ a coalition government
a fusion or merging into one body or mass
ˌcoaˈlitionist, ˌcoaˈlitioner noun
C17: from Medieval Latin coalitiō, from Latin coalēscere to coalesce