We use 'alike' to say two or more things look or seem very similar. It shows they share many features or qualities.
The twins look very much alike.
Their ideas are alike in many ways.
'Alike' as an adverb means doing something in a similar or equal way. It shows how two or more people or things act or are treated the same.
They treated us alike and fairly.
Both children behaved alike today.
Sometimes 'alike' is used after groups or nouns to mean that all members share the same qualities or feelings. It often means 'both' or 'all'.
John and Mary alike enjoy music.
Friends and family alike came to the party.
Here, 'alike' is used to show that different groups or people share the same experience, often to stress surprising or important similarity.
Children and adults alike enjoy games.
Writers and readers alike were pleased.
In science or biology, 'alike' is used to describe species or organisms that have similar traits or shapes because of similar environments or functions, not because they are family.
These birds are alike in flight patterns but not related.
Alike color patterns exist in different fish species.
In math or logic, 'alike' describes things that share the same shape, structure, or properties even if they are not exactly the same object.
Two triangles are alike if their sides match.
Numbers alike have the same properties here.
