entered
v.v. to go or come into a place. You can also use it to mean putting information into a computer or joining a competition.
v. to come or go into a physical space or to record data in a digital system. Transitive in most contexts, though it can function intransitively when the destination is implied.
She entered the room and sat down.
The clerk entered the customer's details into the database to complete the registration process.
Having entered the market at a time of high volatility, the firm struggled to maintain its initial growth projections despite a robust marketing strategy.
The verb is transitive and takes a direct object; when used for physical movement, it does not require the preposition 'into'.
He entered into the roomHe entered the roomWhen 'enter' means to physically go inside a place, it is transitive and does not take the preposition 'into'.