enter into something phrasal verb ( see also ↑ enter )
1 . enter into an agreement/contract etc to make an official agreement to do something
enter into an agreement/contract etc with
Some local authorities have entered into partnership with private companies.
2 . to start discussing or dealing with something:
It could be a problem, but we don’t need to enter into that just yet.
enter into discussions/negotiations (with somebody)
The government refused to enter into discussions with the opposition.
3 . [usually in negatives] to affect a situation and be something that you consider when you make a choice:
He always buys the best – money doesn’t enter into it.
4 . enter into the spirit of it/things to take part in a game, party etc in an eager way