analogy
US /əˈnæl.ə.dʒi/
UK /əˈnæl.ə.dʒi/

1.
a comparison between two things for the purpose of explanation or clarification
:
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The teacher drew an analogy between the human heart and a pump.
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It's difficult to make an analogy for such a complex concept.
2.
a correspondence or partial similarity
:
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There's a clear analogy between the two systems.
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The situation has a strong analogy to what happened last year.