The term you are likely looking for is "analogy." An analogy is a comparison between two things that are alike in some way. It is often used to explain something unfamiliar by comparing it to something more familiar. Analogies typically consist of two pairs of related words or phrases, where the relationship between the first pair is the same as the relationship between the second pair.
NO!!
There are so many expressions of a similarity between two things. The common ones include alike, same, comparable and many more.
This figure of speech is considered to be a metaphor. The function of a metaphor is to use a comparison between two things that are not alike.
If you make or draw an analogy between two things, you show that they are alike in some way. ex...The analogy between music and fragrance has stuck.
'Like two peas in a pod' is a simile.
"Is alike different to like?" Generally, 'alike' is used to refer to things that are similar, E.G. Those two friends are very alike. Where 'like' is used to talk about things that are almost the same, E.G. Those two friends are like twins!
Three possibilities are same, pair or twin.
Things that are alike are the same. If two things are alike, it means they resemble or are similar to each other. For example, You and your sister might be alike in many ways, including your love for ice cream or chocolates.
NO!!
alike
How they are alike and how they are different.
Describing a contrast is describing how two things are different.
It means two things are alike but not in every way!
Same
Yes it is because it is describing two things and that they are alike.
A classifying chart is describing how two things are alike and how there different.
You have to find things that are different and similiar to each other.