Definition
A coalition is a temporary alliance — separate parties, factions, or nations that agree to act as one for a shared purpose and then go their own ways once it is served. It shares a Latin root with coalesce, 'to grow together', but a coalition never fully fuses: each member keeps its own identity and interests, which is what makes coalitions powerful and fragile at once. In politics it is the standard term for a government formed when no single party holds a majority and rivals must combine to rule.
Examples
- After the election, three rival parties had to coalesce into a single governing coalition.
- Environmental groups formed a broad coalition to counteract the new drilling policy.
- The wartime coalition began to fracture the moment its common enemy was gone.
Collocations
form a coalition·a broad coalition·a coalition government·a fragile coalition·build a coalition
Synonyms
alliance·bloc·union·partnership·league
Antonyms
faction·split
Word family
coalitional (adjective)
In TOEFL & IELTS
A key noun for IELTS/TOEFL essays on politics, the environment and international relations. It is countable ('a coalition of NGOs') and collocates tightly with 'form', 'build' and 'broad'. Examiners reward the nuance that a coalition is interest-based and can dissolve — it is not a permanent merger, which is what separates it from a true union.