Do I need to spell it out for you?

a·nal·o·gy
/əˈnaləjē/

noun
noun: analogy; plural noun: analogies

a comparison between two things, typically on the basis of their structure and for the purpose of explanation or clarification.
"an analogy between the workings of nature and those of human societies"

•a correspondence or partial similarity.
"the syndrome is called deep dysgraphia because of its analogy to deep dyslexia"

•a thing that is comparable to something else in significant respects.
"works of art were seen as an analogy for works of nature"

•Logic
a process of arguing from similarity in known respects to similarity in other respects.

synonyms: similarity, parallel, correspondence, likeness, resemblance, correlation, relation, kinship, equivalence, similitude, metaphor, simile
"there's a thinly veiled analogy between his fiction and his real life"

antonyms: dissimilarity

•Linguistics
a process by which new words and inflections are created on the basis of regularities in the form of existing ones.

•Biology
the resemblance of function between organs that have a different evolutionary origin.