In general – a comparison;
The similarity between things that are otherwise different (for example, in many famous passages from his Course in General Linguistics, Ferdinand de Saussure draws attention to the analogies between language and the game of chess).
In logic – a certain type of comparison, having four elements and the following form or structure:
A:B:: C:D (A refers to B as C to D; for example, the trunk of an elephant is what human hands are).
An analogy is a type of reasoning in which the coordination of many things in one respect is used as a guarantee of the premise that these things are similar in other respects.
