'To lock into' definitions:

Definition of 'To lock into'

From: GCIDE
  • Lock \Lock\, v. i. To become fast, as by means of a lock or by interlacing; as, the door locks close. [1913 Webster]
  • When it locked none might through it pass. --Spenser. [1913 Webster]
  • To lock into, to fit or slide into; as, they lock into each other. --Boyle. [1913 Webster]