fit into
phr. v..phr. v.. to be the right size or shape for a space, or to feel like you belong in a group.
phr. v.. to be of the correct dimensions for a container or space; figuratively, to be socially compatible with a group or environment.
The key doesn't fit into the lock.
It took a few weeks, but she finally started to fit into her new team at work.
The architect struggled to ensure the modern glass structure would fit into the historic aesthetic of the surrounding neighborhood.
used both physically for objects and figuratively for social situations or abstract concepts.
distinguish between the literal physical sense and the social sense of 'belonging'; the social sense is often used with 'well' or 'perfectly'.
He fits into with the group.He fits into the group.do not add 'with' after 'into'; the preposition 'into' already connects the verb to the group.